From eb4c8608115c1c9af0fc8cb5b1e9f2bc960014ef Mon Sep 17 00:00:00 2001
From: serge-sans-paille <sguelton@redhat.com>
Date: Sun, 20 Feb 2022 00:03:20 +0100
Subject: [PATCH] Cleanup llvm/DebugInfo/PDB headers

accumulated preprocessed size:
before: 1065515095
after: 1065629059

Discourse thread: https://discourse.llvm.org/t/include-what-you-use-include-cleanup
Differential Revision: https://reviews.llvm.org/D120195
---
 lld/COFF/PDB.cpp                              |  2 ++
 .../Plugins/SymbolFile/PDB/PDBASTParser.cpp   |  2 ++
 .../Plugins/SymbolFile/PDB/SymbolFilePDB.cpp  |  3 +++
 llvm/include/llvm/DebugInfo/MSF/MSFBuilder.h  |  4 ++-
 .../PDB/Native/DbiModuleDescriptorBuilder.h   | 10 +++----
 .../DebugInfo/PDB/Native/DbiStreamBuilder.h   | 22 +++++++---------
 .../DebugInfo/PDB/Native/GSIStreamBuilder.h   | 14 +++++-----
 .../DebugInfo/PDB/Native/InfoStreamBuilder.h  |  8 +++---
 .../DebugInfo/PDB/Native/NativeEnumGlobals.h  |  2 +-
 .../PDB/Native/NativeEnumLineNumbers.h        |  4 ---
 .../DebugInfo/PDB/Native/NativeEnumSymbols.h  |  2 +-
 .../DebugInfo/PDB/Native/NativeEnumTypes.h    |  7 +++--
 .../DebugInfo/PDB/Native/NativeExeSymbol.h    |  5 +++-
 .../PDB/Native/NativeFunctionSymbol.h         |  7 +++--
 .../PDB/Native/NativeInlineSiteSymbol.h       |  5 +++-
 .../DebugInfo/PDB/Native/NativeLineNumber.h   |  4 ++-
 .../DebugInfo/PDB/Native/NativePublicSymbol.h |  5 ++--
 .../llvm/DebugInfo/PDB/Native/NativeSession.h | 12 ++++++---
 .../DebugInfo/PDB/Native/NativeSourceFile.h   |  5 ++--
 .../PDB/Native/NativeSymbolEnumerator.h       |  8 ++++--
 .../DebugInfo/PDB/Native/NativeTypeEnum.h     |  8 +++---
 .../PDB/Native/NativeTypeFunctionSig.h        |  8 +++---
 .../DebugInfo/PDB/Native/NativeTypePointer.h  |  5 ++--
 .../DebugInfo/PDB/Native/NativeTypeTypedef.h  |  8 +++++-
 .../llvm/DebugInfo/PDB/Native/NativeTypeUDT.h |  8 ++++--
 .../DebugInfo/PDB/Native/NativeTypeVTShape.h  |  6 +++--
 .../DebugInfo/PDB/Native/PDBFileBuilder.h     | 14 ++++++----
 .../llvm/DebugInfo/PDB/Native/SymbolCache.h   | 16 ++++++++----
 .../DebugInfo/PDB/Native/TpiStreamBuilder.h   | 15 +++--------
 llvm/include/llvm/DebugInfo/PDB/PDBSymbol.h   |  5 ++--
 .../llvm/DebugInfo/PDB/PDBSymbolAnnotation.h  |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolBlock.h       |  2 --
 .../DebugInfo/PDB/PDBSymbolCompilandDetails.h |  1 -
 .../DebugInfo/PDB/PDBSymbolCompilandEnv.h     |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolCustom.h      |  2 --
 .../llvm/DebugInfo/PDB/PDBSymbolData.h        |  6 ++---
 .../llvm/DebugInfo/PDB/PDBSymbolFunc.h        | 11 +++++---
 .../DebugInfo/PDB/PDBSymbolFuncDebugEnd.h     |  2 --
 .../DebugInfo/PDB/PDBSymbolFuncDebugStart.h   |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolLabel.h       |  1 -
 .../DebugInfo/PDB/PDBSymbolPublicSymbol.h     |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolThunk.h       |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolTypeArray.h   |  1 -
 .../DebugInfo/PDB/PDBSymbolTypeBaseClass.h    |  6 ++---
 .../llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolTypeCustom.h  |  1 -
 .../DebugInfo/PDB/PDBSymbolTypeDimension.h    |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h    |  8 +++---
 .../llvm/DebugInfo/PDB/PDBSymbolTypeFriend.h  |  1 -
 .../DebugInfo/PDB/PDBSymbolTypeFunctionArg.h  |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolTypeManaged.h |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolTypePointer.h |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h     |  9 +++----
 .../llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h  |  1 -
 .../DebugInfo/PDB/PDBSymbolTypeVTableShape.h  |  1 -
 .../llvm/DebugInfo/PDB/PDBSymbolUnknown.h     |  1 -
 .../DebugInfo/PDB/PDBSymbolUsingNamespace.h   |  1 -
 llvm/include/llvm/DebugInfo/PDB/UDTLayout.h   |  1 -
 llvm/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp |  1 -
 llvm/lib/DebugInfo/MSF/MappedBlockStream.cpp  |  1 -
 .../PDB/Native/DbiModuleDescriptorBuilder.cpp | 10 ++++---
 .../DebugInfo/PDB/Native/DbiStreamBuilder.cpp |  1 -
 .../DebugInfo/PDB/Native/GSIStreamBuilder.cpp |  3 ++-
 .../PDB/Native/InfoStreamBuilder.cpp          |  2 --
 .../PDB/Native/NativeCompilandSymbol.cpp      |  2 --
 .../PDB/Native/NativeEnumGlobals.cpp          |  4 ++-
 .../PDB/Native/NativeEnumLineNumbers.cpp      |  7 ++---
 .../PDB/Native/NativeEnumModules.cpp          |  5 +---
 .../PDB/Native/NativeEnumSymbols.cpp          |  4 +--
 .../DebugInfo/PDB/Native/NativeEnumTypes.cpp  | 10 ++++---
 .../DebugInfo/PDB/Native/NativeExeSymbol.cpp  |  6 ++---
 .../PDB/Native/NativeFunctionSymbol.cpp       |  8 ++++--
 .../PDB/Native/NativeInlineSiteSymbol.cpp     |  4 +++
 .../DebugInfo/PDB/Native/NativeLineNumber.cpp |  1 +
 .../PDB/Native/NativePublicSymbol.cpp         |  3 +--
 .../DebugInfo/PDB/Native/NativeRawSymbol.cpp  |  1 -
 .../DebugInfo/PDB/Native/NativeSession.cpp    | 26 ++++++++++++-------
 .../DebugInfo/PDB/Native/NativeSourceFile.cpp |  2 ++
 .../PDB/Native/NativeSymbolEnumerator.cpp     |  2 +-
 .../DebugInfo/PDB/Native/NativeTypeArray.cpp  |  7 ++---
 .../DebugInfo/PDB/Native/NativeTypeEnum.cpp   |  5 ++--
 .../PDB/Native/NativeTypeFunctionSig.cpp      |  3 ++-
 .../PDB/Native/NativeTypePointer.cpp          |  3 ++-
 .../DebugInfo/PDB/Native/NativeTypeUDT.cpp    |  9 ++++---
 .../PDB/Native/NativeTypeVTShape.cpp          |  3 +++
 .../DebugInfo/PDB/Native/PDBFileBuilder.cpp   | 16 ++++++++----
 llvm/lib/DebugInfo/PDB/Native/SymbolCache.cpp | 15 ++++++++---
 .../DebugInfo/PDB/Native/TpiStreamBuilder.cpp |  6 +----
 llvm/lib/DebugInfo/PDB/PDB.cpp                |  1 -
 llvm/lib/DebugInfo/PDB/PDBContext.cpp         |  1 +
 llvm/lib/DebugInfo/PDB/PDBExtras.cpp          |  1 -
 llvm/lib/DebugInfo/PDB/PDBSymbol.cpp          |  2 +-
 .../lib/DebugInfo/PDB/PDBSymbolAnnotation.cpp |  2 --
 llvm/lib/DebugInfo/PDB/PDBSymbolBlock.cpp     |  3 ---
 llvm/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp |  3 ++-
 .../PDB/PDBSymbolCompilandDetails.cpp         |  3 ---
 .../DebugInfo/PDB/PDBSymbolCompilandEnv.cpp   |  4 +--
 llvm/lib/DebugInfo/PDB/PDBSymbolCustom.cpp    |  3 ---
 llvm/lib/DebugInfo/PDB/PDBSymbolData.cpp      |  3 +--
 llvm/lib/DebugInfo/PDB/PDBSymbolExe.cpp       |  3 +--
 llvm/lib/DebugInfo/PDB/PDBSymbolFunc.cpp      |  1 +
 .../DebugInfo/PDB/PDBSymbolFuncDebugEnd.cpp   |  3 ---
 .../DebugInfo/PDB/PDBSymbolFuncDebugStart.cpp |  4 +--
 llvm/lib/DebugInfo/PDB/PDBSymbolLabel.cpp     |  2 --
 .../DebugInfo/PDB/PDBSymbolPublicSymbol.cpp   |  4 +--
 llvm/lib/DebugInfo/PDB/PDBSymbolThunk.cpp     |  2 --
 llvm/lib/DebugInfo/PDB/PDBSymbolTypeArray.cpp |  2 --
 .../DebugInfo/PDB/PDBSymbolTypeBaseClass.cpp  |  4 +--
 .../DebugInfo/PDB/PDBSymbolTypeBuiltin.cpp    |  2 --
 .../lib/DebugInfo/PDB/PDBSymbolTypeCustom.cpp |  3 ---
 .../DebugInfo/PDB/PDBSymbolTypeDimension.cpp  |  3 ---
 llvm/lib/DebugInfo/PDB/PDBSymbolTypeEnum.cpp  |  5 ++--
 .../lib/DebugInfo/PDB/PDBSymbolTypeFriend.cpp |  3 ---
 .../PDB/PDBSymbolTypeFunctionArg.cpp          |  2 --
 .../DebugInfo/PDB/PDBSymbolTypeManaged.cpp    |  3 ---
 .../DebugInfo/PDB/PDBSymbolTypePointer.cpp    |  3 ---
 .../DebugInfo/PDB/PDBSymbolTypeTypedef.cpp    |  2 --
 llvm/lib/DebugInfo/PDB/PDBSymbolTypeUDT.cpp   |  9 +------
 .../lib/DebugInfo/PDB/PDBSymbolTypeVTable.cpp |  2 --
 .../PDB/PDBSymbolTypeVTableShape.cpp          |  4 +--
 llvm/lib/DebugInfo/PDB/PDBSymbolUnknown.cpp   |  3 ---
 .../DebugInfo/PDB/PDBSymbolUsingNamespace.cpp |  3 ---
 llvm/lib/DebugInfo/PDB/UDTLayout.cpp          |  2 ++
 llvm/tools/llvm-pdbutil/LinePrinter.cpp       |  1 +
 .../PrettyClassDefinitionDumper.cpp           |  2 ++
 .../PrettyClassLayoutGraphicalDumper.cpp      |  2 ++
 llvm/tools/llvm-pdbutil/PrettyEnumDumper.cpp  |  2 ++
 .../PrettyExternalSymbolDumper.cpp            |  1 +
 .../llvm-pdbutil/PrettyFunctionDumper.cpp     |  3 +++
 llvm/tools/llvm-pdbutil/PrettyTypeDumper.cpp  |  3 +++
 .../llvm-pdbutil/PrettyTypedefDumper.cpp      |  2 ++
 .../llvm-pdbutil/PrettyVariableDumper.cpp     |  5 +++-
 llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp      |  3 +++
 .../DebugInfo/PDB/NativeSessionTest.cpp       |  2 ++
 .../DebugInfo/PDB/NativeSymbolReuseTest.cpp   |  3 +++
 136 files changed, 300 insertions(+), 290 deletions(-)

diff --git a/lld/COFF/PDB.cpp b/lld/COFF/PDB.cpp
index dea84eca5b12..2ceb4fb98031 100644
--- a/lld/COFF/PDB.cpp
+++ b/lld/COFF/PDB.cpp
@@ -18,6 +18,8 @@
 #include "Writer.h"
 #include "lld/Common/Timer.h"
 #include "llvm/DebugInfo/CodeView/DebugFrameDataSubsection.h"
+#include "llvm/DebugInfo/CodeView/DebugInlineeLinesSubsection.h"
+#include "llvm/DebugInfo/CodeView/DebugLinesSubsection.h"
 #include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
 #include "llvm/DebugInfo/CodeView/GlobalTypeTableBuilder.h"
 #include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
diff --git a/lldb/source/Plugins/SymbolFile/PDB/PDBASTParser.cpp b/lldb/source/Plugins/SymbolFile/PDB/PDBASTParser.cpp
index b4085edd0b97..b466f334af39 100644
--- a/lldb/source/Plugins/SymbolFile/PDB/PDBASTParser.cpp
+++ b/lldb/source/Plugins/SymbolFile/PDB/PDBASTParser.cpp
@@ -23,12 +23,14 @@
 #include "lldb/Symbol/TypeMap.h"
 #include "lldb/Symbol/TypeSystem.h"
 #include "lldb/Utility/LLDBLog.h"
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
 #include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBSourceFile.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeArray.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h"
diff --git a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
index 7f450af70333..16a8ad8a1042 100644
--- a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
+++ b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
@@ -28,6 +28,7 @@
 #include "lldb/Utility/Log.h"
 #include "lldb/Utility/RegularExpression.h"
 
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
 #include "llvm/DebugInfo/PDB/GenericError.h"
 #include "llvm/DebugInfo/PDB/IPDBDataStream.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
@@ -45,7 +46,9 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
 
diff --git a/llvm/include/llvm/DebugInfo/MSF/MSFBuilder.h b/llvm/include/llvm/DebugInfo/MSF/MSFBuilder.h
index 1a03d42ded92..2ac18a8efaba 100644
--- a/llvm/include/llvm/DebugInfo/MSF/MSFBuilder.h
+++ b/llvm/include/llvm/DebugInfo/MSF/MSFBuilder.h
@@ -11,7 +11,7 @@
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/BitVector.h"
-#include "llvm/DebugInfo/MSF/MSFCommon.h"
+#include "llvm/ADT/StringRef.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/Error.h"
 #include <cstdint>
@@ -22,6 +22,8 @@ namespace llvm {
 class FileBufferByteStream;
 namespace msf {
 
+struct MSFLayout;
+
 class MSFBuilder {
 public:
   /// Create a new `MSFBuilder`.
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h b/llvm/include/llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h
index 8a49f46320b0..287f319e01b0 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h
@@ -9,13 +9,12 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_DBIMODULEDESCRIPTORBUILDER_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_DBIMODULEDESCRIPTORBUILDER_H
 
+#include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/StringRef.h"
-#include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
-#include "llvm/DebugInfo/CodeView/DebugInlineeLinesSubsection.h"
-#include "llvm/DebugInfo/CodeView/DebugLinesSubsection.h"
+#include "llvm/DebugInfo/CodeView/CVRecord.h"
 #include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
-#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
 #include "llvm/DebugInfo/PDB/Native/RawTypes.h"
+#include "llvm/Support/BinaryStreamRef.h"
 #include "llvm/Support/Error.h"
 #include <cstdint>
 #include <string>
@@ -23,9 +22,8 @@
 
 namespace llvm {
 class BinaryStreamWriter;
-
 namespace codeview {
-class DebugSubsectionRecordBuilder;
+class DebugSubsection;
 }
 
 namespace msf {
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h b/llvm/include/llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h
index ef441d433040..2f99aa942a05 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h
@@ -10,35 +10,33 @@
 #define LLVM_DEBUGINFO_PDB_NATIVE_DBISTREAMBUILDER_H
 
 #include "llvm/ADT/Optional.h"
-#include "llvm/ADT/StringSet.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
 #include "llvm/BinaryFormat/COFF.h"
+#include "llvm/Object/COFF.h"
+#include "llvm/Support/Allocator.h"
 #include "llvm/Support/Error.h"
 
 #include "llvm/DebugInfo/CodeView/DebugFrameDataSubsection.h"
-#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
 #include "llvm/DebugInfo/PDB/Native/PDBStringTableBuilder.h"
 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
+#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
 #include "llvm/DebugInfo/PDB/PDBTypes.h"
 #include "llvm/Support/BinaryByteStream.h"
-#include "llvm/Support/BinaryStreamReader.h"
-#include "llvm/Support/Endian.h"
+#include "llvm/Support/BinaryStreamRef.h"
 
 namespace llvm {
+
+class BinaryStreamWriter;
 namespace codeview {
 struct FrameData;
 }
 namespace msf {
 class MSFBuilder;
-}
-namespace object {
-struct coff_section;
-struct FpoData;
+struct MSFLayout;
 }
 namespace pdb {
-class DbiStream;
-struct DbiStreamHeader;
 class DbiModuleDescriptorBuilder;
-class PDBFile;
 
 class DbiStreamBuilder {
 public:
@@ -134,7 +132,7 @@ private:
   std::vector<SecMapEntry> SectionMap;
   std::array<Optional<DebugStream>, (int)DbgHeaderType::Max> DbgStreams;
 };
-}
+} // namespace pdb
 }
 
 #endif
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/GSIStreamBuilder.h b/llvm/include/llvm/DebugInfo/PDB/Native/GSIStreamBuilder.h
index 9530a15849d5..28a72c887f25 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/GSIStreamBuilder.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/GSIStreamBuilder.h
@@ -10,18 +10,20 @@
 #define LLVM_DEBUGINFO_PDB_NATIVE_GSISTREAMBUILDER_H
 
 #include "llvm/ADT/DenseSet.h"
-#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
+#include "llvm/DebugInfo/CodeView/CVRecord.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
-#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
-#include "llvm/Support/BinaryByteStream.h"
-#include "llvm/Support/BinaryItemStream.h"
 #include "llvm/Support/BinaryStreamRef.h"
-#include "llvm/Support/BinaryStreamWriter.h"
-#include "llvm/Support/Endian.h"
 #include "llvm/Support/Error.h"
 
 namespace llvm {
+namespace codeview {
+class ConstantSym;
+class DataSym;
+class ProcRefSym;
+} // namespace codeview
+template <typename T> struct BinaryItemTraits;
 
 template <> struct BinaryItemTraits<codeview::CVSymbol> {
   static size_t length(const codeview::CVSymbol &Item) {
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h b/llvm/include/llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h
index 4952173c5873..7acd336bbe08 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h
@@ -12,10 +12,9 @@
 #include "llvm/ADT/Optional.h"
 #include "llvm/Support/Error.h"
 
-#include "llvm/DebugInfo/PDB/Native/NamedStreamMap.h"
-#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
+#include "llvm/DebugInfo/CodeView/GUID.h"
+#include "llvm/DebugInfo/MSF/MSFCommon.h"
 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
-#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
 class WritableBinaryStreamRef;
@@ -24,7 +23,6 @@ namespace msf {
 class MSFBuilder;
 }
 namespace pdb {
-class PDBFile;
 class NamedStreamMap;
 
 class InfoStreamBuilder {
@@ -70,7 +68,7 @@ private:
 
   NamedStreamMap &NamedStreams;
 };
-}
+} // namespace pdb
 }
 
 #endif
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumGlobals.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumGlobals.h
index 073878afd129..c10e652efa8d 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumGlobals.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumGlobals.h
@@ -9,7 +9,7 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVEENUMGLOBALS_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVEENUMGLOBALS_H
 
-#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
 
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumLineNumbers.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumLineNumbers.h
index 32a4515d557e..14b28c346bf2 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumLineNumbers.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumLineNumbers.h
@@ -9,16 +9,12 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVEENUMLINENUMBERS_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVEENUMLINENUMBERS_H
 
-#include "llvm/DebugInfo/CodeView/DebugLinesSubsection.h"
-#include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
-#include "llvm/DebugInfo/CodeView/StringsAndChecksums.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/Native/NativeLineNumber.h"
 
 namespace llvm {
 namespace pdb {
-class IPDBLineNumber;
 
 class NativeEnumLineNumbers : public IPDBEnumChildren<IPDBLineNumber> {
 public:
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumSymbols.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumSymbols.h
index 480b3fb11419..5fc91675f209 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumSymbols.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumSymbols.h
@@ -9,9 +9,9 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVEENUMSYMBOLS_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVEENUMSYMBOLS_H
 
-#include "llvm/DebugInfo/CodeView/TypeRecord.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 #include <vector>
 
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumTypes.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumTypes.h
index 25c56567384f..2ca000c1c0fe 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumTypes.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeEnumTypes.h
@@ -9,14 +9,17 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVEENUMTYPES_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVEENUMTYPES_H
 
-#include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
-#include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/CodeView/TypeIndex.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
 
 #include <vector>
 
 namespace llvm {
+namespace codeview {
+class LazyRandomTypeCollection;
+}
 namespace pdb {
 
 class NativeSession;
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeExeSymbol.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeExeSymbol.h
index 280358d02305..82fdff130c4f 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeExeSymbol.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeExeSymbol.h
@@ -9,12 +9,15 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVEEXESYMBOL_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVEEXESYMBOL_H
 
+#include "llvm/DebugInfo/CodeView/GUID.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
 namespace pdb {
 
+class NativeSession;
+
 class DbiStream;
 
 class NativeExeSymbol : public NativeRawSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeFunctionSymbol.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeFunctionSymbol.h
index b219055d2153..c15e22f61077 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeFunctionSymbol.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeFunctionSymbol.h
@@ -9,14 +9,17 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVEFUNCTIONSYMBOL_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVEFUNCTIONSYMBOL_H
 
-#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
+class raw_ostream;
 namespace pdb {
 
+class NativeSession;
+
 class NativeFunctionSymbol : public NativeRawSymbol {
 public:
   NativeFunctionSymbol(NativeSession &Session, SymIndexId Id,
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeInlineSiteSymbol.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeInlineSiteSymbol.h
index 2f6aba038ae8..b2818a0aadfd 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeInlineSiteSymbol.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeInlineSiteSymbol.h
@@ -11,12 +11,15 @@
 
 #include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
 namespace pdb {
 
+class NativeSession;
+
 class NativeInlineSiteSymbol : public NativeRawSymbol {
 public:
   NativeInlineSiteSymbol(NativeSession &Session, SymIndexId Id,
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeLineNumber.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeLineNumber.h
index be0ddf0a063a..53f2985833fd 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeLineNumber.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeLineNumber.h
@@ -11,10 +11,12 @@
 
 #include "llvm/DebugInfo/CodeView/Line.h"
 #include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 
 namespace llvm {
 namespace pdb {
+
+class NativeSession;
+
 class NativeLineNumber : public IPDBLineNumber {
 public:
   explicit NativeLineNumber(const NativeSession &Session,
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativePublicSymbol.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativePublicSymbol.h
index 9f410e27f4cb..43de80507d02 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativePublicSymbol.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativePublicSymbol.h
@@ -9,13 +9,14 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVEPUBLICSYMBOL_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVEPUBLICSYMBOL_H
 
-#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 
 namespace llvm {
+
+class raw_ostream;
 namespace pdb {
+class NativeSession;
 
 class NativePublicSymbol : public NativeRawSymbol {
 public:
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeSession.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeSession.h
index 5f8fc587e546..95be7d09aae9 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeSession.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeSession.h
@@ -9,13 +9,11 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVESESSION_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVESESSION_H
 
-#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/IntervalMap.h"
 #include "llvm/ADT/StringRef.h"
-#include "llvm/DebugInfo/CodeView/TypeIndex.h"
-#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
-#include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/Error.h"
 
@@ -24,6 +22,12 @@ class MemoryBuffer;
 namespace pdb {
 class PDBFile;
 class NativeExeSymbol;
+class IPDBSourceFile;
+class ModuleDebugStreamRef;
+class PDBSymbol;
+class PDBSymbolCompiland;
+class PDBSymbolExe;
+template <typename ChildType> class IPDBEnumChildren;
 
 class NativeSession : public IPDBSession {
   struct PdbSearchOptions {
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeSourceFile.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeSourceFile.h
index eb6336f268e8..c6653368bc0c 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeSourceFile.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeSourceFile.h
@@ -11,11 +11,12 @@
 
 #include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
 #include "llvm/DebugInfo/PDB/IPDBSourceFile.h"
-#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
-#include "llvm/DebugInfo/PDB/Native/PDBStringTable.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
 namespace pdb {
+class PDBSymbolCompiland;
+template <typename ChildType> class IPDBEnumChildren;
 class NativeSession;
 
 class NativeSourceFile : public IPDBSourceFile {
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeSymbolEnumerator.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeSymbolEnumerator.h
index d6a3125ee40b..ab4abc4d3c2c 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeSymbolEnumerator.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeSymbolEnumerator.h
@@ -9,12 +9,16 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVESYMBOLENUMERATOR_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVESYMBOLENUMERATOR_H
 
-#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
+
+class raw_ostream;
 namespace pdb {
+class NativeSession;
 class NativeTypeEnum;
 
 class NativeSymbolEnumerator : public NativeRawSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeEnum.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeEnum.h
index 2068c88fc74a..429c06f29ac7 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeEnum.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeEnum.h
@@ -10,12 +10,14 @@
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVETYPEENUM_H
 
 #include "llvm/ADT/Optional.h"
-#include "llvm/DebugInfo/CodeView/CodeView.h"
-#include "llvm/DebugInfo/CodeView/TypeVisitorCallbacks.h"
+#include "llvm/DebugInfo/CodeView/TypeIndex.h"
+#include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
+class raw_ostream;
 namespace pdb {
 
 class NativeTypeBuiltin;
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeFunctionSig.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeFunctionSig.h
index 90b5d8068959..47ea722313c3 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeFunctionSig.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeFunctionSig.h
@@ -9,17 +9,15 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVETYPEFUNCTIONSIG_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVETYPEFUNCTIONSIG_H
 
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/CodeView/TypeIndex.h"
 #include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
 namespace pdb {
 
-class NativeTypeUDT;
-
 class NativeTypeFunctionSig : public NativeRawSymbol {
 protected:
   void initialize() override;
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypePointer.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypePointer.h
index 7a3dfaecefeb..1f357754ac0f 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypePointer.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypePointer.h
@@ -10,10 +10,11 @@
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVETYPEPOINTER_H
 
 #include "llvm/ADT/Optional.h"
-#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/CodeView/TypeIndex.h"
 #include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
 namespace pdb {
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeTypedef.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeTypedef.h
index 292fc48e7b6d..9ce079c5e5a9 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeTypedef.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeTypedef.h
@@ -9,14 +9,20 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVETYPETYPEDEF_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVETYPETYPEDEF_H
 
-#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
+
+class raw_ostream;
+
 namespace pdb {
 
+class NativeSession;
+
 class NativeTypeTypedef : public NativeRawSymbol {
 public:
   // Create a pointer record for a non-simple type.
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeUDT.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeUDT.h
index e1b31a256c12..a1dd39c0b4be 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeUDT.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeUDT.h
@@ -10,13 +10,17 @@
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVETYPEUDT_H
 
 #include "llvm/ADT/Optional.h"
-#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/CodeView/TypeIndex.h"
 #include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
+
+class raw_ostream;
 namespace pdb {
+class NativeSession;
 
 class NativeTypeUDT : public NativeRawSymbol {
 public:
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeVTShape.h b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeVTShape.h
index 21995ca665c1..92d51706c1da 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeVTShape.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/NativeTypeVTShape.h
@@ -9,13 +9,15 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_NATIVETYPEVTSHAPE_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_NATIVETYPEVTSHAPE_H
 
-#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/CodeView/TypeIndex.h"
 #include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 namespace llvm {
 namespace pdb {
+class NativeSession;
 
 class NativeTypeVTShape : public NativeRawSymbol {
 public:
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/PDBFileBuilder.h b/llvm/include/llvm/DebugInfo/PDB/Native/PDBFileBuilder.h
index 004d005280d4..c23d958f8ed0 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/PDBFileBuilder.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/PDBFileBuilder.h
@@ -9,24 +9,28 @@
 #ifndef LLVM_DEBUGINFO_PDB_NATIVE_PDBFILEBUILDER_H
 #define LLVM_DEBUGINFO_PDB_NATIVE_PDBFILEBUILDER_H
 
-#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/DebugInfo/PDB/Native/HashTable.h"
 #include "llvm/DebugInfo/PDB/Native/NamedStreamMap.h"
-#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
 #include "llvm/DebugInfo/PDB/Native/PDBStringTableBuilder.h"
-#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
-#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
 #include "llvm/Support/Allocator.h"
-#include "llvm/Support/Endian.h"
 #include "llvm/Support/Error.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include <memory>
 
 namespace llvm {
+class WritableBinaryStream;
+namespace codeview {
+struct GUID;
+}
+
 namespace msf {
 class MSFBuilder;
+struct MSFLayout;
 }
 namespace pdb {
+struct SrcHeaderBlockEntry;
 class DbiStreamBuilder;
 class InfoStreamBuilder;
 class GSIStreamBuilder;
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/SymbolCache.h b/llvm/include/llvm/DebugInfo/PDB/Native/SymbolCache.h
index 1ff6ca173b2b..7c5b6b9e1bdf 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/SymbolCache.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/SymbolCache.h
@@ -10,23 +10,29 @@
 #define LLVM_DEBUGINFO_PDB_NATIVE_SYMBOLCACHE_H
 
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/IntervalMap.h"
+#include "llvm/DebugInfo/CodeView/CVRecord.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/CodeView/Line.h"
-#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
 #include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
 #include "llvm/DebugInfo/CodeView/TypeIndex.h"
-#include "llvm/DebugInfo/CodeView/TypeRecord.h"
-#include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSourceFile.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 #include <memory>
 #include <vector>
 
 namespace llvm {
+namespace codeview {
+class InlineSiteSym;
+struct FileChecksumEntry;
+} // namespace codeview
 namespace pdb {
+class IPDBSourceFile;
+class NativeSession;
+class PDBSymbol;
+class PDBSymbolCompiland;
 class DbiStream;
-class PDBFile;
 
 class SymbolCache {
   NativeSession &Session;
diff --git a/llvm/include/llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h b/llvm/include/llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h
index f18d38ae0b31..9f320358144c 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h
@@ -10,12 +10,10 @@
 #define LLVM_DEBUGINFO_PDB_NATIVE_TPISTREAMBUILDER_H
 
 #include "llvm/ADT/Optional.h"
-#include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/CodeView/CVRecord.h"
+#include "llvm/DebugInfo/CodeView/TypeIndex.h"
 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
-#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
 #include "llvm/Support/Allocator.h"
-#include "llvm/Support/BinaryByteStream.h"
-#include "llvm/Support/BinaryItemStream.h"
 #include "llvm/Support/BinaryStreamRef.h"
 #include "llvm/Support/Error.h"
 
@@ -23,7 +21,7 @@
 
 namespace llvm {
 class BinaryByteStream;
-class WritableBinaryStreamRef;
+template <typename T> struct BinaryItemTraits;
 
 template <> struct BinaryItemTraits<llvm::codeview::CVType> {
   static size_t length(const codeview::CVType &Item) { return Item.length(); }
@@ -32,16 +30,11 @@ template <> struct BinaryItemTraits<llvm::codeview::CVType> {
   }
 };
 
-namespace codeview {
-class TypeRecord;
-}
 namespace msf {
 class MSFBuilder;
 struct MSFLayout;
 }
 namespace pdb {
-class PDBFile;
-class TpiStream;
 struct TpiStreamHeader;
 
 class TpiStreamBuilder {
@@ -88,7 +81,7 @@ private:
   const TpiStreamHeader *Header;
   uint32_t Idx;
 };
-}
+} // namespace pdb
 }
 
 #endif
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbol.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbol.h
index 24cf1e459f92..4e34b75b6117 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbol.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbol.h
@@ -9,11 +9,9 @@
 #ifndef LLVM_DEBUGINFO_PDB_PDBSYMBOL_H
 #define LLVM_DEBUGINFO_PDB_PDBSYMBOL_H
 
-#include "ConcreteSymbolEnumerator.h"
 #include "IPDBRawSymbol.h"
 #include "PDBExtras.h"
 #include "PDBTypes.h"
-#include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/Casting.h"
 
 #define FORWARD_SYMBOL_METHOD(MethodName)                                      \
@@ -43,6 +41,9 @@ class raw_ostream;
 
 namespace pdb {
 class IPDBSession;
+class PDBSymDumper;
+class PDBSymbol;
+template <typename ChildType> class ConcreteSymbolEnumerator;
 
 #define DECLARE_PDB_SYMBOL_CONCRETE_TYPE(TagValue)                             \
 private:                                                                       \
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolAnnotation.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolAnnotation.h
index c76466a97b66..c8d3d0b7bb96 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolAnnotation.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolAnnotation.h
@@ -13,7 +13,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolAnnotation : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolBlock.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolBlock.h
index cf471450d989..09142227b017 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolBlock.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolBlock.h
@@ -13,8 +13,6 @@
 
 namespace llvm {
 
-class raw_ostream;
-
 namespace pdb {
 
 class PDBSymbolBlock : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCompilandDetails.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCompilandDetails.h
index dbd8ba5a63ff..46c159268533 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCompilandDetails.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCompilandDetails.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolCompilandDetails : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCompilandEnv.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCompilandEnv.h
index 61607a03593d..cba082f2ff19 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCompilandEnv.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCompilandEnv.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 class PDBSymbolCompilandEnv : public PDBSymbol {
   DECLARE_PDB_SYMBOL_CONCRETE_TYPE(PDB_SymType::CompilandEnv)
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCustom.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCustom.h
index 75a86411643a..c78b47ce9924 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCustom.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolCustom.h
@@ -15,8 +15,6 @@
 
 namespace llvm {
 
-class raw_ostream;
-
 namespace pdb {
 /// PDBSymbolCustom represents symbols that are compiler-specific and do not
 /// fit anywhere else in the lexical hierarchy.
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolData.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolData.h
index 7e9b69d7cf4b..61e67d1368a8 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolData.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolData.h
@@ -9,16 +9,16 @@
 #ifndef LLVM_DEBUGINFO_PDB_PDBSYMBOLDATA_H
 #define LLVM_DEBUGINFO_PDB_PDBSYMBOLDATA_H
 
-#include "IPDBLineNumber.h"
 #include "PDBSymbol.h"
 #include "PDBTypes.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 
 namespace llvm {
 
-class raw_ostream;
-
 namespace pdb {
 
+class PDBSymDumper;
+
 class PDBSymbolData : public PDBSymbol {
   DECLARE_PDB_SYMBOL_CONCRETE_TYPE(PDB_SymType::Data)
 public:
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFunc.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFunc.h
index f50057c68406..bfc7f7689718 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFunc.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFunc.h
@@ -9,17 +9,20 @@
 #ifndef LLVM_DEBUGINFO_PDB_PDBSYMBOLFUNC_H
 #define LLVM_DEBUGINFO_PDB_PDBSYMBOLFUNC_H
 
-#include "IPDBLineNumber.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
+
 #include "PDBSymbol.h"
-#include "PDBSymbolTypeFunctionSig.h"
 #include "PDBTypes.h"
 
 namespace llvm {
 
-class raw_ostream;
-
 namespace pdb {
 
+class PDBSymDumper;
+class PDBSymbolData;
+class PDBSymbolTypeFunctionSig;
+template <typename ChildType> class IPDBEnumChildren;
+
 class PDBSymbolFunc : public PDBSymbol {
   DECLARE_PDB_SYMBOL_CONCRETE_TYPE(PDB_SymType::Function)
 public:
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h
index 1cdc1811bb1a..09c6f4728960 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h
@@ -14,8 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
-
 namespace pdb {
 
 class PDBSymbolFuncDebugEnd : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h
index 021f27c7f0f7..843a8348a2f0 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolFuncDebugStart : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolLabel.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolLabel.h
index 33eb36696cc2..148802a47cbc 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolLabel.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolLabel.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolLabel : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h
index f8dcb2ba9d5f..a757cc02624b 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolPublicSymbol : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolThunk.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolThunk.h
index a5f795cc1303..2b81a63995e6 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolThunk.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolThunk.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolThunk : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeArray.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeArray.h
index d4cd6e71423e..496141e5fa68 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeArray.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeArray.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeArray : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h
index bd2dbc914725..c74ac3fb9cce 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h
@@ -12,14 +12,14 @@
 #include "PDBSymbol.h"
 #include "PDBTypes.h"
 
-#include "llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
+class PDBSymDumper;
+
 class PDBSymbolTypeBaseClass : public PDBSymbol {
   DECLARE_PDB_SYMBOL_CONCRETE_TYPE(PDB_SymType::BaseClass)
 public:
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h
index df6309b1545c..b923983095f3 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeBuiltin : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeCustom.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeCustom.h
index 7bf0317ff1ca..b15abf7bedfd 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeCustom.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeCustom.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeCustom : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeDimension.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeDimension.h
index 5d742237bac4..e7570b41dd21 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeDimension.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeDimension.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeDimension : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h
index 0aab91039509..ee1f736c17a0 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h
@@ -9,16 +9,18 @@
 #ifndef LLVM_DEBUGINFO_PDB_PDBSYMBOLTYPEENUM_H
 #define LLVM_DEBUGINFO_PDB_PDBSYMBOLTYPEENUM_H
 
-#include "IPDBLineNumber.h"
 #include "PDBSymbol.h"
-#include "PDBSymbolTypeBuiltin.h"
 #include "PDBTypes.h"
 
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
+
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
+class PDBSymDumper;
+class PDBSymbolTypeBuiltin;
+
 class PDBSymbolTypeEnum : public PDBSymbol {
   DECLARE_PDB_SYMBOL_CONCRETE_TYPE(PDB_SymType::Enum)
 public:
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeFriend.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeFriend.h
index d56a90662dae..9fde42116261 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeFriend.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeFriend.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeFriend : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h
index 559ceec5aace..71decff722a5 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeFunctionArg : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeManaged.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeManaged.h
index 5e7b83ce8004..866bf520a3b2 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeManaged.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeManaged.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeManaged : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypePointer.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypePointer.h
index da25eab50f9b..1b43ef9a21bd 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypePointer.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypePointer.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypePointer : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h
index 8dc29ca26192..3f37730cf1df 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeTypedef : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h
index 3e73ad7ac85a..a3a49a4b619a 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h
@@ -9,18 +9,17 @@
 #ifndef LLVM_DEBUGINFO_PDB_PDBSYMBOLTYPEUDT_H
 #define LLVM_DEBUGINFO_PDB_PDBSYMBOLTYPEUDT_H
 
-#include "IPDBLineNumber.h"
-#include "IPDBSession.h"
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
+
 #include "PDBSymbol.h"
-#include "PDBSymbolTypeBaseClass.h"
 #include "PDBTypes.h"
 
 namespace llvm {
 
-class raw_ostream;
-
 namespace pdb {
 
+class PDBSymDumper;
+
 class PDBSymbolTypeUDT : public PDBSymbol {
   DECLARE_PDB_SYMBOL_CONCRETE_TYPE(PDB_SymType::UDT)
 public:
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h
index d08728dafa76..6223bee98670 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeVTable : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h
index c7e2ac148503..bec0a9970a9f 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolTypeVTableShape : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolUnknown.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolUnknown.h
index 5b4909b800b9..a53af49bc9e0 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolUnknown.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolUnknown.h
@@ -13,7 +13,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolUnknown : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolUsingNamespace.h b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolUsingNamespace.h
index 19a8f414eb43..dde25a023d00 100644
--- a/llvm/include/llvm/DebugInfo/PDB/PDBSymbolUsingNamespace.h
+++ b/llvm/include/llvm/DebugInfo/PDB/PDBSymbolUsingNamespace.h
@@ -14,7 +14,6 @@
 
 namespace llvm {
 
-class raw_ostream;
 namespace pdb {
 
 class PDBSymbolUsingNamespace : public PDBSymbol {
diff --git a/llvm/include/llvm/DebugInfo/PDB/UDTLayout.h b/llvm/include/llvm/DebugInfo/PDB/UDTLayout.h
index c67b093b63c0..8631c412f114 100644
--- a/llvm/include/llvm/DebugInfo/PDB/UDTLayout.h
+++ b/llvm/include/llvm/DebugInfo/PDB/UDTLayout.h
@@ -18,7 +18,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h"
-#include "llvm/DebugInfo/PDB/PDBTypes.h"
 #include <cstdint>
 #include <memory>
 #include <string>
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp b/llvm/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp
index cb5924784da8..6461f2ac031d 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp
@@ -9,7 +9,6 @@
 #include "llvm/DebugInfo/DWARF/DWARFCompileUnit.h"
 #include "llvm/DebugInfo/DIContext.h"
 #include "llvm/DebugInfo/DWARF/DWARFDie.h"
-#include "llvm/DebugInfo/DWARF/DWARFUnitIndex.h"
 
 #include "llvm/Support/Format.h"
 #include "llvm/Support/raw_ostream.h"
diff --git a/llvm/lib/DebugInfo/MSF/MappedBlockStream.cpp b/llvm/lib/DebugInfo/MSF/MappedBlockStream.cpp
index 00fc70ca5a54..94935d63452e 100644
--- a/llvm/lib/DebugInfo/MSF/MappedBlockStream.cpp
+++ b/llvm/lib/DebugInfo/MSF/MappedBlockStream.cpp
@@ -8,7 +8,6 @@
 
 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
 #include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/STLExtras.h"
 #include "llvm/DebugInfo/MSF/MSFCommon.h"
 #include "llvm/Support/BinaryStreamWriter.h"
 #include "llvm/Support/Endian.h"
diff --git a/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp b/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp
index 14e6f938dc01..c12ac38c2317 100644
--- a/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.cpp
@@ -10,12 +10,10 @@
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/BinaryFormat/COFF.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
 #include "llvm/DebugInfo/MSF/MSFBuilder.h"
-#include "llvm/DebugInfo/MSF/MSFCommon.h"
 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
-#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
-#include "llvm/DebugInfo/PDB/Native/GSIStreamBuilder.h"
 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
 #include "llvm/DebugInfo/PDB/Native/RawError.h"
 #include "llvm/Support/BinaryStreamWriter.h"
@@ -25,6 +23,12 @@ using namespace llvm::codeview;
 using namespace llvm::msf;
 using namespace llvm::pdb;
 
+namespace llvm {
+namespace codeview {
+class DebugSubsection;
+}
+} // namespace llvm
+
 static uint32_t calculateDiSymbolStreamSize(uint32_t SymbolByteSize,
                                             uint32_t C13Size) {
   uint32_t Size = sizeof(uint32_t);   // Signature
diff --git a/llvm/lib/DebugInfo/PDB/Native/DbiStreamBuilder.cpp b/llvm/lib/DebugInfo/PDB/Native/DbiStreamBuilder.cpp
index c11fe2e3ea0f..69db1279dae5 100644
--- a/llvm/lib/DebugInfo/PDB/Native/DbiStreamBuilder.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/DbiStreamBuilder.cpp
@@ -14,7 +14,6 @@
 #include "llvm/DebugInfo/MSF/MSFBuilder.h"
 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
 #include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h"
-#include "llvm/DebugInfo/PDB/Native/DbiStream.h"
 #include "llvm/DebugInfo/PDB/Native/RawError.h"
 #include "llvm/Object/COFF.h"
 #include "llvm/Support/BinaryStreamWriter.h"
diff --git a/llvm/lib/DebugInfo/PDB/Native/GSIStreamBuilder.cpp b/llvm/lib/DebugInfo/PDB/Native/GSIStreamBuilder.cpp
index b048e0c8e458..cf6790d72f8b 100644
--- a/llvm/lib/DebugInfo/PDB/Native/GSIStreamBuilder.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/GSIStreamBuilder.cpp
@@ -14,7 +14,7 @@
 
 #include "llvm/DebugInfo/PDB/Native/GSIStreamBuilder.h"
 #include "llvm/DebugInfo/CodeView/RecordName.h"
-#include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
+#include "llvm/DebugInfo/CodeView/RecordSerialization.h"
 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
 #include "llvm/DebugInfo/CodeView/SymbolSerializer.h"
 #include "llvm/DebugInfo/MSF/MSFBuilder.h"
@@ -22,6 +22,7 @@
 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
 #include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
 #include "llvm/DebugInfo/PDB/Native/Hash.h"
+#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
 #include "llvm/Support/BinaryItemStream.h"
 #include "llvm/Support/BinaryStreamWriter.h"
 #include "llvm/Support/Parallel.h"
diff --git a/llvm/lib/DebugInfo/PDB/Native/InfoStreamBuilder.cpp b/llvm/lib/DebugInfo/PDB/Native/InfoStreamBuilder.cpp
index 42daa7cae799..04bb26ab5e1d 100644
--- a/llvm/lib/DebugInfo/PDB/Native/InfoStreamBuilder.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/InfoStreamBuilder.cpp
@@ -10,9 +10,7 @@
 
 #include "llvm/DebugInfo/MSF/MSFBuilder.h"
 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
-#include "llvm/DebugInfo/PDB/Native/InfoStream.h"
 #include "llvm/DebugInfo/PDB/Native/NamedStreamMap.h"
-#include "llvm/DebugInfo/PDB/Native/PDBFileBuilder.h"
 #include "llvm/DebugInfo/PDB/Native/RawError.h"
 #include "llvm/DebugInfo/PDB/Native/RawTypes.h"
 #include "llvm/Support/BinaryStreamWriter.h"
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeCompilandSymbol.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeCompilandSymbol.cpp
index 7717f062eac1..d24364312b31 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeCompilandSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeCompilandSymbol.cpp
@@ -9,8 +9,6 @@
 #include "llvm/DebugInfo/PDB/Native/NativeCompilandSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 
-#include "llvm/ADT/STLExtras.h"
-
 namespace llvm {
 namespace pdb {
 
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeEnumGlobals.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeEnumGlobals.cpp
index 54646867bc5f..b861fc2435b8 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeEnumGlobals.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeEnumGlobals.cpp
@@ -8,13 +8,15 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeEnumGlobals.h"
 
-#include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
+#include "llvm/DebugInfo/CodeView/CVRecord.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
+#include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
 #include "llvm/DebugInfo/PDB/Native/SymbolStream.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeEnumLineNumbers.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeEnumLineNumbers.cpp
index 1e4b07646335..5815d08e4668 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeEnumLineNumbers.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeEnumLineNumbers.cpp
@@ -8,13 +8,10 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeEnumLineNumbers.h"
 
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/DebugInfo/CodeView/DebugLinesSubsection.h"
-#include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
+#include "llvm/ADT/DenseMapInfo.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/Native/NativeLineNumber.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
-#include "llvm/DebugInfo/PDB/Native/NativeSourceFile.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeEnumModules.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeEnumModules.cpp
index c6621924b516..7108b8efff83 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeEnumModules.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeEnumModules.cpp
@@ -8,13 +8,10 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeEnumModules.h"
 
-#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
-#include "llvm/DebugInfo/PDB/Native/NativeCompilandSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeExeSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
 
 namespace llvm {
 namespace pdb {
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeEnumSymbols.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeEnumSymbols.cpp
index feede1dbc958..24fe2244cfc5 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeEnumSymbols.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeEnumSymbols.cpp
@@ -8,11 +8,11 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeEnumSymbols.h"
 
+#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
+#include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeEnumTypes.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeEnumTypes.cpp
index 2524e10cb6c5..b5548696fa1d 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeEnumTypes.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeEnumTypes.cpp
@@ -8,13 +8,17 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeEnumTypes.h"
 
-#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/DebugInfo/CodeView/CVRecord.h"
+#include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
 #include "llvm/DebugInfo/CodeView/TypeRecordHelpers.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
+#include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
+#include "llvm/Support/ErrorHandling.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeExeSymbol.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeExeSymbol.cpp
index 895f8943157a..ae0f66c31fde 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeExeSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeExeSymbol.cpp
@@ -8,14 +8,14 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeExeSymbol.h"
 
-#include "llvm/ADT/STLExtras.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/Native/DbiStream.h"
 #include "llvm/DebugInfo/PDB/Native/InfoStream.h"
-#include "llvm/DebugInfo/PDB/Native/NativeCompilandSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeEnumModules.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
 #include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeFunctionSymbol.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeFunctionSymbol.cpp
index 55052839b3e8..b1caa5add5b3 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeFunctionSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeFunctionSymbol.cpp
@@ -8,11 +8,15 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeFunctionSymbol.h"
 
+#include "llvm/DebugInfo/CodeView/CVRecord.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
 #include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
+#include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
 #include "llvm/DebugInfo/PDB/Native/NativeEnumSymbols.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeBuiltin.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
+#include "llvm/DebugInfo/PDB/PDBExtras.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeInlineSiteSymbol.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeInlineSiteSymbol.cpp
index fb51179cca78..fd79acf2d7e2 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeInlineSiteSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeInlineSiteSymbol.cpp
@@ -12,8 +12,12 @@
 #include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
 #include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
+#include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
 #include "llvm/DebugInfo/PDB/Native/NativeEnumLineNumbers.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
 #include "llvm/DebugInfo/PDB/Native/TpiStream.h"
+#include "llvm/DebugInfo/PDB/PDBExtras.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeLineNumber.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeLineNumber.cpp
index 155ed0cdb828..aa7d6ac6f29d 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeLineNumber.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeLineNumber.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/PDB/Native/NativeLineNumber.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativePublicSymbol.cpp b/llvm/lib/DebugInfo/PDB/Native/NativePublicSymbol.cpp
index 739480e4a57b..339af6108009 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativePublicSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativePublicSymbol.cpp
@@ -9,8 +9,7 @@
 #include "llvm/DebugInfo/PDB/Native/NativePublicSymbol.h"
 
 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeBuiltin.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeRawSymbol.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeRawSymbol.cpp
index 2ad552470b61..89f9f9836fec 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeRawSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeRawSymbol.cpp
@@ -10,7 +10,6 @@
 #include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
-#include "llvm/Support/FormatVariadic.h"
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeSession.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeSession.cpp
index 7212a0e65035..cf314c3bede3 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeSession.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeSession.cpp
@@ -8,31 +8,33 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/DebugInfo/CodeView/TypeIndex.h"
+#include "llvm/BinaryFormat/Magic.h"
+#include "llvm/DebugInfo/MSF/MSFCommon.h"
+#include "llvm/DebugInfo/MSF/MappedBlockStream.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/IPDBSourceFile.h"
+#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
+#include "llvm/DebugInfo/PDB/Native/DbiModuleList.h"
 #include "llvm/DebugInfo/PDB/Native/DbiStream.h"
 #include "llvm/DebugInfo/PDB/Native/ISectionContribVisitor.h"
-#include "llvm/DebugInfo/PDB/Native/NativeCompilandSymbol.h"
+#include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
 #include "llvm/DebugInfo/PDB/Native/NativeEnumInjectedSources.h"
-#include "llvm/DebugInfo/PDB/Native/NativeEnumTypes.h"
 #include "llvm/DebugInfo/PDB/Native/NativeExeSymbol.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeBuiltin.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
 #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
+#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
 #include "llvm/DebugInfo/PDB/Native/RawError.h"
+#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
 #include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
-#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
+#include "llvm/DebugInfo/PDB/PDBSymbol.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
+#include "llvm/Object/Binary.h"
 #include "llvm/Object/COFF.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/BinaryByteStream.h"
+#include "llvm/Support/BinaryStreamArray.h"
 #include "llvm/Support/Error.h"
 #include "llvm/Support/ErrorOr.h"
-#include "llvm/Support/FileSystem.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
 
@@ -45,6 +47,12 @@ using namespace llvm;
 using namespace llvm::msf;
 using namespace llvm::pdb;
 
+namespace llvm {
+namespace codeview {
+union DebugInfo;
+}
+} // namespace llvm
+
 static DbiStream *getDbiStreamPtr(PDBFile &File) {
   Expected<DbiStream &> DbiS = File.getPDBDbiStream();
   if (DbiS)
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeSourceFile.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeSourceFile.cpp
index fd813dee6b9f..8d6f8ebebf4c 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeSourceFile.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeSourceFile.cpp
@@ -8,6 +8,8 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeSourceFile.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
+#include "llvm/DebugInfo/PDB/Native/PDBStringTable.h"
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeSymbolEnumerator.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeSymbolEnumerator.cpp
index 24807a7b4865..a6e8cbf71548 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeSymbolEnumerator.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeSymbolEnumerator.cpp
@@ -8,7 +8,7 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeSymbolEnumerator.h"
 
-#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 #include "llvm/DebugInfo/PDB/Native/NativeTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
 
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeTypeArray.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeTypeArray.cpp
index 31fc0ac5f619..e98f357ac485 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeTypeArray.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeTypeArray.cpp
@@ -8,9 +8,10 @@
 
 #include "llvm/DebugInfo/PDB/Native/NativeTypeArray.h"
 
-#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeBuiltin.h"
-#include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
+#include "llvm/DebugInfo/PDB/PDBExtras.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeTypeEnum.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeTypeEnum.cpp
index 98a8475eee58..f347e0d22f56 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeTypeEnum.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeTypeEnum.cpp
@@ -9,8 +9,9 @@
 #include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
 
 #include "llvm/DebugInfo/CodeView/CVTypeVisitor.h"
+#include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
 #include "llvm/DebugInfo/CodeView/TypeRecord.h"
-#include "llvm/DebugInfo/PDB/Native/NativeEnumTypes.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSymbolEnumerator.h"
 #include "llvm/DebugInfo/PDB/Native/NativeTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
@@ -18,8 +19,6 @@
 #include "llvm/DebugInfo/PDB/Native/TpiStream.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 
-#include "llvm/Support/FormatVariadic.h"
-
 #include <cassert>
 
 using namespace llvm;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeTypeFunctionSig.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeTypeFunctionSig.cpp
index 251ed58d250b..7db3f1c63128 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeTypeFunctionSig.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeTypeFunctionSig.cpp
@@ -10,9 +10,10 @@
 
 #include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
 #include "llvm/DebugInfo/PDB/Native/NativeEnumTypes.h"
-#include "llvm/DebugInfo/PDB/PDBExtras.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
 #include "llvm/DebugInfo/PDB/Native/TpiStream.h"
+#include "llvm/DebugInfo/PDB/PDBExtras.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeTypePointer.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeTypePointer.cpp
index ae153d6f4f23..14b903ccef5a 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeTypePointer.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeTypePointer.cpp
@@ -7,8 +7,9 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/PDB/Native/NativeTypePointer.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 
-#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
 
 #include <cassert>
 
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeTypeUDT.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeTypeUDT.cpp
index 2ed23f5f5419..95fba1114ef2 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeTypeUDT.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeTypeUDT.cpp
@@ -7,10 +7,11 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/PDB/Native/NativeTypeUDT.h"
-
-#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
-
-#include <cassert>
+#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
+#include "llvm/DebugInfo/PDB/PDBExtras.h"
 
 using namespace llvm;
 using namespace llvm::codeview;
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeTypeVTShape.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeTypeVTShape.cpp
index b022345b9a75..63bb3f046e23 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeTypeVTShape.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeTypeVTShape.cpp
@@ -1,4 +1,7 @@
 #include "llvm/DebugInfo/PDB/Native/NativeTypeVTShape.h"
+#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
+#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/PDBExtras.h"
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/Native/PDBFileBuilder.cpp b/llvm/lib/DebugInfo/PDB/Native/PDBFileBuilder.cpp
index b23ce8cc6005..73106c2195ad 100644
--- a/llvm/lib/DebugInfo/PDB/Native/PDBFileBuilder.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/PDBFileBuilder.cpp
@@ -7,20 +7,22 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/PDB/Native/PDBFileBuilder.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/CodeView/GUID.h"
+#include "llvm/DebugInfo/MSF/IMSFFile.h"
 #include "llvm/DebugInfo/MSF/MSFBuilder.h"
-#include "llvm/DebugInfo/PDB/Native/DbiStream.h"
+#include "llvm/DebugInfo/MSF/MSFCommon.h"
+#include "llvm/DebugInfo/MSF/MappedBlockStream.h"
 #include "llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h"
 #include "llvm/DebugInfo/PDB/Native/GSIStreamBuilder.h"
-#include "llvm/DebugInfo/PDB/Native/InfoStream.h"
 #include "llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h"
 #include "llvm/DebugInfo/PDB/Native/PDBStringTableBuilder.h"
+#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
 #include "llvm/DebugInfo/PDB/Native/RawError.h"
-#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
+#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
 #include "llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h"
-#include "llvm/Support/BinaryStream.h"
 #include "llvm/Support/BinaryStreamWriter.h"
 #include "llvm/Support/CRC.h"
-#include "llvm/Support/Chrono.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/xxhash.h"
 
@@ -30,6 +32,10 @@ using namespace llvm::msf;
 using namespace llvm::pdb;
 using namespace llvm::support;
 
+namespace llvm {
+class WritableBinaryStream;
+}
+
 PDBFileBuilder::PDBFileBuilder(BumpPtrAllocator &Allocator)
     : Allocator(Allocator), InjectedSourceHashTraits(Strings),
       InjectedSourceTable(2) {}
diff --git a/llvm/lib/DebugInfo/PDB/Native/SymbolCache.cpp b/llvm/lib/DebugInfo/PDB/Native/SymbolCache.cpp
index f9e67014477e..b3efbf97b463 100644
--- a/llvm/lib/DebugInfo/PDB/Native/SymbolCache.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/SymbolCache.cpp
@@ -1,20 +1,25 @@
 #include "llvm/DebugInfo/PDB/Native/SymbolCache.h"
 
-#include "llvm/DebugInfo/CodeView/DebugInlineeLinesSubsection.h"
+#include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
 #include "llvm/DebugInfo/CodeView/DebugLinesSubsection.h"
+#include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
+#include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
 #include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
+#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
 #include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
+#include "llvm/DebugInfo/CodeView/TypeRecord.h"
 #include "llvm/DebugInfo/CodeView/TypeRecordHelpers.h"
+#include "llvm/DebugInfo/PDB/IPDBSourceFile.h"
+#include "llvm/DebugInfo/PDB/Native/DbiModuleList.h"
 #include "llvm/DebugInfo/PDB/Native/DbiStream.h"
-#include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
-#include "llvm/DebugInfo/PDB/Native/ISectionContribVisitor.h"
+#include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
 #include "llvm/DebugInfo/PDB/Native/NativeCompilandSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeEnumGlobals.h"
 #include "llvm/DebugInfo/PDB/Native/NativeEnumLineNumbers.h"
-#include "llvm/DebugInfo/PDB/Native/NativeEnumSymbols.h"
 #include "llvm/DebugInfo/PDB/Native/NativeEnumTypes.h"
 #include "llvm/DebugInfo/PDB/Native/NativeFunctionSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeInlineSiteSymbol.h"
+#include "llvm/DebugInfo/PDB/Native/NativeLineNumber.h"
 #include "llvm/DebugInfo/PDB/Native/NativePublicSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeRawSymbol.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
@@ -28,10 +33,12 @@
 #include "llvm/DebugInfo/PDB/Native/NativeTypeVTShape.h"
 #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
 #include "llvm/DebugInfo/PDB/Native/PublicsStream.h"
+#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
 #include "llvm/DebugInfo/PDB/Native/SymbolStream.h"
 #include "llvm/DebugInfo/PDB/Native/TpiStream.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
 
 using namespace llvm;
diff --git a/llvm/lib/DebugInfo/PDB/Native/TpiStreamBuilder.cpp b/llvm/lib/DebugInfo/PDB/Native/TpiStreamBuilder.cpp
index 5f4f497690b6..986e45e050c7 100644
--- a/llvm/lib/DebugInfo/PDB/Native/TpiStreamBuilder.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/TpiStreamBuilder.cpp
@@ -9,17 +9,13 @@
 #include "llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/STLExtras.h"
+#include "llvm/DebugInfo/CodeView/RecordSerialization.h"
 #include "llvm/DebugInfo/CodeView/TypeIndex.h"
-#include "llvm/DebugInfo/CodeView/TypeRecord.h"
 #include "llvm/DebugInfo/MSF/MSFBuilder.h"
 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
-#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
-#include "llvm/DebugInfo/PDB/Native/RawError.h"
 #include "llvm/DebugInfo/PDB/Native/RawTypes.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/BinaryByteStream.h"
-#include "llvm/Support/BinaryStreamArray.h"
-#include "llvm/Support/BinaryStreamReader.h"
 #include "llvm/Support/BinaryStreamWriter.h"
 #include "llvm/Support/Endian.h"
 #include "llvm/Support/Error.h"
diff --git a/llvm/lib/DebugInfo/PDB/PDB.cpp b/llvm/lib/DebugInfo/PDB/PDB.cpp
index e5b7731f6f4a..d106ba8fefc1 100644
--- a/llvm/lib/DebugInfo/PDB/PDB.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDB.cpp
@@ -15,7 +15,6 @@
 #endif
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 #include "llvm/Support/Error.h"
-#include "llvm/Support/MemoryBuffer.h"
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBContext.cpp b/llvm/lib/DebugInfo/PDB/PDBContext.cpp
index 0ebb70e010d5..a0a572ef6b66 100644
--- a/llvm/lib/DebugInfo/PDB/PDBContext.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBContext.cpp
@@ -14,6 +14,7 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
 #include "llvm/Object/COFF.h"
 
 using namespace llvm;
diff --git a/llvm/lib/DebugInfo/PDB/PDBExtras.cpp b/llvm/lib/DebugInfo/PDB/PDBExtras.cpp
index a6d7ca0da7a9..45503aecef3a 100644
--- a/llvm/lib/DebugInfo/PDB/PDBExtras.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBExtras.cpp
@@ -7,7 +7,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/PDB/PDBExtras.h"
-#include "llvm/ADT/ArrayRef.h"
 #include "llvm/Support/raw_ostream.h"
 
 using namespace llvm;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbol.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbol.cpp
index d6bc7ee9c951..4eb5af9bd292 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbol.cpp
@@ -8,6 +8,7 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDBExtras.h"
@@ -43,7 +44,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolUnknown.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolUsingNamespace.h"
 #include "llvm/DebugInfo/PDB/PDBTypes.h"
-#include <algorithm>
 #include <memory>
 
 using namespace llvm;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolAnnotation.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolAnnotation.cpp
index 0fa83efb7ae0..089f4de0f422 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolAnnotation.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolAnnotation.cpp
@@ -10,8 +10,6 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolBlock.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolBlock.cpp
index 9452282a8817..49ee4937521b 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolBlock.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolBlock.cpp
@@ -9,9 +9,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolBlock.h"
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp
index 529100b23ba5..bd60489b6bed 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp
@@ -9,10 +9,11 @@
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/IPDBSourceFile.h"
 
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
+#include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolCompilandDetails.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolCompilandEnv.h"
-#include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/Support/Path.h"
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolCompilandDetails.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolCompilandDetails.cpp
index 0d86dfe1e632..f775ac949cd8 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolCompilandDetails.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolCompilandDetails.cpp
@@ -9,9 +9,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolCompilandDetails.h"
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolCompilandEnv.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolCompilandEnv.cpp
index 61f119405fd9..2c2ed59c1726 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolCompilandEnv.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolCompilandEnv.cpp
@@ -10,9 +10,7 @@
 
 #include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolCustom.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolCustom.cpp
index 6c9a4aa76c3d..405b07c2b689 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolCustom.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolCustom.cpp
@@ -10,9 +10,6 @@
 
 #include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolData.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolData.cpp
index d2b82111ccd5..c604b5cd3a6a 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolData.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolData.cpp
@@ -7,12 +7,11 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBSectionContrib.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolExe.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolExe.cpp
index c85756c43e47..b9575e59f44d 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolExe.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolExe.cpp
@@ -8,11 +8,10 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
 
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolFunc.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolFunc.cpp
index cb0329bc0ed7..e976d9155efd 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolFunc.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolFunc.cpp
@@ -10,6 +10,7 @@
 
 #include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolFuncDebugEnd.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolFuncDebugEnd.cpp
index 66433dc17b49..5c72e3f62121 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolFuncDebugEnd.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolFuncDebugEnd.cpp
@@ -9,9 +9,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h"
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolFuncDebugStart.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolFuncDebugStart.cpp
index fe32c93c0121..fd537a9eeea4 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolFuncDebugStart.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolFuncDebugStart.cpp
@@ -8,10 +8,8 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h"
 
+#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolLabel.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolLabel.cpp
index 1fffe69a0c83..896719a6a8e2 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolLabel.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolLabel.cpp
@@ -10,8 +10,6 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolPublicSymbol.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolPublicSymbol.cpp
index 08697683f641..a00b1be40e18 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolPublicSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolPublicSymbol.cpp
@@ -8,10 +8,8 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h"
 
+#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolThunk.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolThunk.cpp
index 6483858183e5..42502a55ef76 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolThunk.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolThunk.cpp
@@ -10,8 +10,6 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeArray.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeArray.cpp
index a0d521abe43f..bb4eb43f22e5 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeArray.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeArray.cpp
@@ -10,8 +10,6 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeBaseClass.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeBaseClass.cpp
index 08467059b5e1..539c3547a4b0 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeBaseClass.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeBaseClass.cpp
@@ -8,10 +8,8 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
 
+#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeBuiltin.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeBuiltin.cpp
index a0dd9ef601c0..eca2a09c1f77 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeBuiltin.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeBuiltin.cpp
@@ -10,8 +10,6 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeCustom.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeCustom.cpp
index 6723894c90ea..a616b4e26cb1 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeCustom.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeCustom.cpp
@@ -9,9 +9,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeCustom.h"
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeDimension.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeDimension.cpp
index 4a25a391f278..2828ce4df3f8 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeDimension.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeDimension.cpp
@@ -10,9 +10,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeDimension.h"
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeEnum.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeEnum.cpp
index b9fdf6aec811..8f0b4d66a4a3 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeEnum.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeEnum.cpp
@@ -7,11 +7,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
-
-#include "llvm/DebugInfo/PDB/PDBSymDumper.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 
-#include <utility>
+#include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeFriend.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeFriend.cpp
index 4ffea42cbb0a..d4bd9996d786 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeFriend.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeFriend.cpp
@@ -9,9 +9,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFriend.h"
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeFunctionArg.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeFunctionArg.cpp
index 683e93548fb1..acda57f44e33 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeFunctionArg.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeFunctionArg.cpp
@@ -10,8 +10,6 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeManaged.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeManaged.cpp
index e80e6c716572..fa6e630e3c45 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeManaged.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeManaged.cpp
@@ -9,9 +9,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeManaged.h"
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypePointer.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypePointer.cpp
index 462fc315359b..9e238c7caa37 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypePointer.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypePointer.cpp
@@ -8,11 +8,8 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
 
-#include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeTypedef.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeTypedef.cpp
index 70749d9bf5f5..c2ce21c6ca69 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeTypedef.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeTypedef.cpp
@@ -10,8 +10,6 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeUDT.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeUDT.cpp
index d302c29a3bec..3e9aa9e67e84 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeUDT.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeUDT.cpp
@@ -8,17 +8,10 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
 
-#include "llvm/DebugInfo/PDB/IPDBSession.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolData.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeVTable.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeVTable.cpp
index 4e2a45116d51..a4d81888e457 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeVTable.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeVTable.cpp
@@ -10,8 +10,6 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
 
-#include <utility>
-
 using namespace llvm;
 using namespace llvm::pdb;
 
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeVTableShape.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeVTableShape.cpp
index 78957620e083..4d2ab2913896 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolTypeVTableShape.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolTypeVTableShape.cpp
@@ -8,10 +8,8 @@
 
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h"
 
+#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolUnknown.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolUnknown.cpp
index 650d01183171..85294a4cded2 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolUnknown.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolUnknown.cpp
@@ -9,9 +9,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolUnknown.h"
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolUsingNamespace.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolUsingNamespace.cpp
index 74afbdb18086..98aaaa9b10b9 100644
--- a/llvm/lib/DebugInfo/PDB/PDBSymbolUsingNamespace.cpp
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolUsingNamespace.cpp
@@ -9,9 +9,6 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolUsingNamespace.h"
 
 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
-#include "llvm/DebugInfo/PDB/PDBSymbol.h"
-
-#include <utility>
 
 using namespace llvm;
 using namespace llvm::pdb;
diff --git a/llvm/lib/DebugInfo/PDB/UDTLayout.cpp b/llvm/lib/DebugInfo/PDB/UDTLayout.cpp
index 55854bb49888..53b4d9477a90 100644
--- a/llvm/lib/DebugInfo/PDB/UDTLayout.cpp
+++ b/llvm/lib/DebugInfo/PDB/UDTLayout.cpp
@@ -10,6 +10,7 @@
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/STLExtras.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDBSymbol.h"
@@ -17,6 +18,7 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h"
diff --git a/llvm/tools/llvm-pdbutil/LinePrinter.cpp b/llvm/tools/llvm-pdbutil/LinePrinter.cpp
index dd6ca5bf41b1..6e32105b157a 100644
--- a/llvm/tools/llvm-pdbutil/LinePrinter.cpp
+++ b/llvm/tools/llvm-pdbutil/LinePrinter.cpp
@@ -13,6 +13,7 @@
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/DebugInfo/MSF/MSFCommon.h"
 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
 #include "llvm/DebugInfo/PDB/UDTLayout.h"
 #include "llvm/Support/BinaryStreamReader.h"
diff --git a/llvm/tools/llvm-pdbutil/PrettyClassDefinitionDumper.cpp b/llvm/tools/llvm-pdbutil/PrettyClassDefinitionDumper.cpp
index b7eccac5988c..37b3fc970642 100644
--- a/llvm/tools/llvm-pdbutil/PrettyClassDefinitionDumper.cpp
+++ b/llvm/tools/llvm-pdbutil/PrettyClassDefinitionDumper.cpp
@@ -14,7 +14,9 @@
 
 #include "llvm/ADT/APFloat.h"
 #include "llvm/ADT/SmallString.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
 #include "llvm/DebugInfo/PDB/UDTLayout.h"
 
diff --git a/llvm/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp b/llvm/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp
index a522935e34f1..364fd3ff7b54 100644
--- a/llvm/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp
+++ b/llvm/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp
@@ -17,8 +17,10 @@
 #include "PrettyVariableDumper.h"
 #include "llvm-pdbutil.h"
 
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
 #include "llvm/DebugInfo/PDB/UDTLayout.h"
 #include "llvm/Support/Format.h"
diff --git a/llvm/tools/llvm-pdbutil/PrettyEnumDumper.cpp b/llvm/tools/llvm-pdbutil/PrettyEnumDumper.cpp
index 9ed5893f252e..cb96b55c4a83 100644
--- a/llvm/tools/llvm-pdbutil/PrettyEnumDumper.cpp
+++ b/llvm/tools/llvm-pdbutil/PrettyEnumDumper.cpp
@@ -12,6 +12,8 @@
 #include "PrettyBuiltinDumper.h"
 #include "llvm-pdbutil.h"
 
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
diff --git a/llvm/tools/llvm-pdbutil/PrettyExternalSymbolDumper.cpp b/llvm/tools/llvm-pdbutil/PrettyExternalSymbolDumper.cpp
index fede031ec0c0..14f241264e2f 100644
--- a/llvm/tools/llvm-pdbutil/PrettyExternalSymbolDumper.cpp
+++ b/llvm/tools/llvm-pdbutil/PrettyExternalSymbolDumper.cpp
@@ -9,6 +9,7 @@
 #include "PrettyExternalSymbolDumper.h"
 #include "LinePrinter.h"
 
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h"
 #include "llvm/Support/Format.h"
diff --git a/llvm/tools/llvm-pdbutil/PrettyFunctionDumper.cpp b/llvm/tools/llvm-pdbutil/PrettyFunctionDumper.cpp
index b820ca333965..f9a5a801c28f 100644
--- a/llvm/tools/llvm-pdbutil/PrettyFunctionDumper.cpp
+++ b/llvm/tools/llvm-pdbutil/PrettyFunctionDumper.cpp
@@ -10,6 +10,8 @@
 #include "LinePrinter.h"
 #include "PrettyBuiltinDumper.h"
 
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDBExtras.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
@@ -17,6 +19,7 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeArray.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
diff --git a/llvm/tools/llvm-pdbutil/PrettyTypeDumper.cpp b/llvm/tools/llvm-pdbutil/PrettyTypeDumper.cpp
index 2f7a39803ca5..5730a0c494de 100644
--- a/llvm/tools/llvm-pdbutil/PrettyTypeDumper.cpp
+++ b/llvm/tools/llvm-pdbutil/PrettyTypeDumper.cpp
@@ -16,6 +16,8 @@
 #include "PrettyTypedefDumper.h"
 #include "llvm-pdbutil.h"
 
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeArray.h"
@@ -25,6 +27,7 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h"
 #include "llvm/DebugInfo/PDB/UDTLayout.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/FormatVariadic.h"
diff --git a/llvm/tools/llvm-pdbutil/PrettyTypedefDumper.cpp b/llvm/tools/llvm-pdbutil/PrettyTypedefDumper.cpp
index ef73a8cdf9c4..09c591015c56 100644
--- a/llvm/tools/llvm-pdbutil/PrettyTypedefDumper.cpp
+++ b/llvm/tools/llvm-pdbutil/PrettyTypedefDumper.cpp
@@ -13,8 +13,10 @@
 #include "PrettyFunctionDumper.h"
 #include "PrettyTypeDumper.h"
 
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDBExtras.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
diff --git a/llvm/tools/llvm-pdbutil/PrettyVariableDumper.cpp b/llvm/tools/llvm-pdbutil/PrettyVariableDumper.cpp
index 6dd7cc384cc9..60fb0d2ae0bd 100644
--- a/llvm/tools/llvm-pdbutil/PrettyVariableDumper.cpp
+++ b/llvm/tools/llvm-pdbutil/PrettyVariableDumper.cpp
@@ -13,16 +13,19 @@
 #include "PrettyFunctionDumper.h"
 #include "llvm-pdbutil.h"
 
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeArray.h"
-#include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h"
 #include "llvm/DebugInfo/PDB/PDBTypes.h"
 
 #include "llvm/Support/Format.h"
diff --git a/llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp b/llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp
index b152ebd6dccb..39ca2e01789f 100644
--- a/llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp
+++ b/llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp
@@ -44,8 +44,10 @@
 #include "llvm/DebugInfo/CodeView/StringsAndChecksums.h"
 #include "llvm/DebugInfo/CodeView/TypeStreamMerger.h"
 #include "llvm/DebugInfo/MSF/MSFBuilder.h"
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
 #include "llvm/DebugInfo/PDB/IPDBInjectedSource.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h"
@@ -67,6 +69,7 @@
 #include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolThunk.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
diff --git a/llvm/unittests/DebugInfo/PDB/NativeSessionTest.cpp b/llvm/unittests/DebugInfo/PDB/NativeSessionTest.cpp
index 002dd6579a46..b010b5fce867 100644
--- a/llvm/unittests/DebugInfo/PDB/NativeSessionTest.cpp
+++ b/llvm/unittests/DebugInfo/PDB/NativeSessionTest.cpp
@@ -7,10 +7,12 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/PDB.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
 #include "llvm/Support/Path.h"
 
 #include "llvm/Testing/Support/Error.h"
diff --git a/llvm/unittests/DebugInfo/PDB/NativeSymbolReuseTest.cpp b/llvm/unittests/DebugInfo/PDB/NativeSymbolReuseTest.cpp
index 91c7db4fc393..daf375c8e5cd 100644
--- a/llvm/unittests/DebugInfo/PDB/NativeSymbolReuseTest.cpp
+++ b/llvm/unittests/DebugInfo/PDB/NativeSymbolReuseTest.cpp
@@ -8,10 +8,13 @@
 
 #include "llvm/DebugInfo/PDB/PDB.h"
 
+#include "llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h"
+#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
 #include "llvm/DebugInfo/PDB/IPDBSession.h"
 #include "llvm/DebugInfo/PDB/Native/NativeSession.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
 #include "llvm/Support/Path.h"
 
 #include "llvm/Testing/Support/Error.h"