Prune TargetInfo.h include from ParsedAttr.h, NFC

Saves ~400 includes of related headers:

$ diff -u <(sort thedeps-before.txt) <(sort thedeps-after.txt) \
    | grep '^[-+] ' | sort | uniq -c | sort -nr
    468 -    llvm-project/clang/include/clang/Basic/TargetInfo.h
    468 -    llvm-project/clang/include/clang/Basic/TargetCXXABI.h
    368 -    llvm-project/llvm/include/llvm/Support/CodeGen.h
    368 -    llvm-project/clang/include/clang/Basic/XRayInstr.h
    368 -    llvm-project/clang/include/clang/Basic/CodeGenOptions.h
    368 -    llvm-project/clang/include/clang/Basic/CodeGenOptions.def
    367 -    llvm-project/llvm/include/llvm/ADT/FloatingPointMode.h
    367 -    llvm-project/clang/include/clang/Basic/DebugInfoOptions.h

clang-tools-extra/clang-tidy/ClangTidyDiagnosticConsumer.cpp

@@ -26,6 +26,7 @@
 #include "clang/Tooling/Core/Diagnostic.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallString.h"
+#include "llvm/Support/Regex.h"
 #include <tuple>
 #include <vector>
 using namespace clang;

clang-tools-extra/clang-tidy/ClangTidyDiagnosticConsumer.h

@@ -19,6 +19,10 @@
 #include "llvm/ADT/StringMap.h"
 #include "llvm/Support/Timer.h"
 
+namespace llvm {
+class Regex;
+}
+
 namespace clang {
 
 class ASTContext;

clang-tools-extra/clang-tidy/ExpandModularHeadersPPCallbacks.cpp

@@ -8,6 +8,7 @@
 
 #include "ExpandModularHeadersPPCallbacks.h"
 #include "clang/Basic/FileManager.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Frontend/CompilerInstance.h"
 #include "clang/Lex/PreprocessorOptions.h"
 #include "clang/Serialization/ASTReader.h"

clang-tools-extra/clang-tidy/cert/DefaultOperatorNewAlignmentCheck.cpp

@@ -9,6 +9,7 @@
 #include "DefaultOperatorNewAlignmentCheck.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/Basic/TargetInfo.h"
 
 using namespace clang::ast_matchers;
 

clang-tools-extra/clang-tidy/portability/SIMDIntrinsicsCheck.cpp

@@ -9,6 +9,7 @@
 #include "SIMDIntrinsicsCheck.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/Triple.h"
 #include "llvm/Support/Regex.h"

clang/include/clang/Sema/ParsedAttr.h

@@ -18,7 +18,6 @@
 #include "clang/Basic/AttributeCommonInfo.h"
 #include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/SourceLocation.h"
-#include "clang/Basic/TargetInfo.h"
 #include "clang/Sema/Ownership.h"
 #include "llvm/ADT/PointerUnion.h"
 #include "llvm/ADT/SmallVector.h"
@@ -40,6 +39,7 @@ class IdentifierInfo;
 class LangOptions;
 class ParsedAttr;
 class Sema;
+class TargetInfo;
 
 struct ParsedAttrInfo {
   /// Corresponds to the Kind enum.

clang/include/clang/Sema/Sema.h

@@ -22,8 +22,8 @@
 #include "clang/AST/DeclTemplate.h"
 #include "clang/AST/DeclarationName.h"
 #include "clang/AST/Expr.h"
-#include "clang/AST/ExprConcepts.h"
 #include "clang/AST/ExprCXX.h"
+#include "clang/AST/ExprConcepts.h"
 #include "clang/AST/ExprObjC.h"
 #include "clang/AST/ExternalASTSource.h"
 #include "clang/AST/LocInfoType.h"
@@ -36,6 +36,7 @@
 #include "clang/Basic/BitmaskEnum.h"
 #include "clang/Basic/ExpressionTraits.h"
 #include "clang/Basic/Module.h"
+#include "clang/Basic/OpenCLOptions.h"
 #include "clang/Basic/OpenMPKinds.h"
 #include "clang/Basic/PragmaKinds.h"
 #include "clang/Basic/Specifiers.h"

clang/lib/Frontend/FrontendActions.cpp

@@ -9,6 +9,7 @@
 #include "clang/Frontend/FrontendActions.h"
 #include "clang/AST/ASTConsumer.h"
 #include "clang/Basic/FileManager.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Basic/LangStandard.h"
 #include "clang/Frontend/ASTConsumers.h"
 #include "clang/Frontend/CompilerInstance.h"

clang/lib/Frontend/InterfaceStubFunctionsConsumer.cpp

@@ -8,6 +8,7 @@
 
 #include "clang/AST/Mangle.h"
 #include "clang/AST/RecursiveASTVisitor.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Frontend/CompilerInstance.h"
 #include "clang/Frontend/FrontendActions.h"
 #include "clang/Sema/TemplateInstCallback.h"

clang/lib/Parse/ParseObjc.cpp

@@ -10,11 +10,12 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "clang/Parse/Parser.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/PrettyDeclStackTrace.h"
 #include "clang/Basic/CharInfo.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Parse/ParseDiagnostic.h"
+#include "clang/Parse/Parser.h"
 #include "clang/Parse/RAIIObjectsForParser.h"
 #include "clang/Sema/DeclSpec.h"
 #include "clang/Sema/Scope.h"

clang/lib/Sema/SemaAvailability.cpp

@@ -14,6 +14,7 @@
 #include "clang/AST/Decl.h"
 #include "clang/AST/RecursiveASTVisitor.h"
 #include "clang/Basic/DiagnosticSema.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Sema/DelayedDiagnostic.h"
 #include "clang/Sema/ScopeInfo.h"

clang/lib/Sema/SemaCUDA.cpp

@@ -14,6 +14,7 @@
 #include "clang/AST/Decl.h"
 #include "clang/AST/ExprCXX.h"
 #include "clang/Basic/Cuda.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Sema/Lookup.h"
 #include "clang/Sema/Sema.h"

clang/lib/Sema/SemaDeclObjC.cpp

@@ -19,6 +19,7 @@
 #include "clang/AST/ExprObjC.h"
 #include "clang/AST/RecursiveASTVisitor.h"
 #include "clang/Basic/SourceManager.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Sema/DeclSpec.h"
 #include "clang/Sema/Lookup.h"
 #include "clang/Sema/Scope.h"

clang/lib/Sema/SemaOpenMP.cpp

@@ -25,6 +25,7 @@
 #include "clang/Basic/DiagnosticSema.h"
 #include "clang/Basic/OpenMPKinds.h"
 #include "clang/Basic/PartialDiagnostic.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Sema/Initialization.h"
 #include "clang/Sema/Lookup.h"
 #include "clang/Sema/Scope.h"

clang/lib/Sema/SemaTemplateInstantiate.cpp

@@ -9,7 +9,6 @@
 //
 //===----------------------------------------------------------------------===/
 
-#include "clang/Sema/SemaInternal.h"
 #include "TreeTransform.h"
 #include "clang/AST/ASTConsumer.h"
 #include "clang/AST/ASTContext.h"
@@ -21,13 +20,15 @@
 #include "clang/AST/TypeVisitor.h"
 #include "clang/Basic/LangOptions.h"
 #include "clang/Basic/Stack.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Sema/DeclSpec.h"
 #include "clang/Sema/Initialization.h"
 #include "clang/Sema/Lookup.h"
+#include "clang/Sema/SemaConcept.h"
+#include "clang/Sema/SemaInternal.h"
 #include "clang/Sema/Template.h"
 #include "clang/Sema/TemplateDeduction.h"
 #include "clang/Sema/TemplateInstCallback.h"
-#include "clang/Sema/SemaConcept.h"
 #include "llvm/Support/TimeProfiler.h"
 
 using namespace clang;

clang/lib/Sema/SemaTemplateInstantiateDecl.cpp

@@ -9,7 +9,6 @@
 //
 //===----------------------------------------------------------------------===/
 
-#include "clang/Sema/SemaInternal.h"
 #include "clang/AST/ASTConsumer.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/ASTMutationListener.h"
@@ -21,8 +20,10 @@
 #include "clang/AST/PrettyDeclStackTrace.h"
 #include "clang/AST/TypeLoc.h"
 #include "clang/Basic/SourceManager.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Sema/Initialization.h"
 #include "clang/Sema/Lookup.h"
+#include "clang/Sema/SemaInternal.h"
 #include "clang/Sema/Template.h"
 #include "clang/Sema/TemplateInstCallback.h"
 #include "llvm/Support/TimeProfiler.h"

clang/lib/Tooling/AllTUsExecution.cpp

@@ -8,8 +8,9 @@
 
 #include "clang/Tooling/AllTUsExecution.h"
 #include "clang/Tooling/ToolExecutorPluginRegistry.h"
-#include "llvm/Support/Threading.h"
+#include "llvm/Support/Regex.h"
 #include "llvm/Support/ThreadPool.h"
+#include "llvm/Support/Threading.h"
 #include "llvm/Support/VirtualFileSystem.h"
 
 namespace clang {