[clang-format][NFCish] Alphabetical sort Format.(h|pp)

I've:
- Sorted the members of FormatStyle alphabetical. The enums and structs
  are kept close to the member.
- Sorted the yaml io functions, based on the type they operate on.
- Sorted the initializers in getLLVMStyle(), except that penalities are
  kept at the end.
- Sorted the io of FormatStyle, this changes the --dump-config behavior.
- Moved the deprecated options into the only input case, this also
  changes --dump-config, it does not put the not directly used options
  in the .clang-format anymore.
- Sorted the comparisons in operator==.
- Added WhiteSpaceMacros in operator==, I've not actively looked if all
  other members are compared.
- This showed flawed tests (or in my opinion a flawed io operation, but
  that is another discussion and change).

Differential Revision: https://reviews.llvm.org/D137409

clang/docs/ClangFormatStyleOptions.rst

@@ -3583,8 +3583,7 @@ the configuration (without a prefix: ``Auto``).
   (counted relative to leading non-whitespace column).
 
 **PenaltyReturnTypeOnItsOwnLine** (``Unsigned``) :versionbadge:`clang-format 3.7`
-  Penalty for putting the return type of a function onto its own
-  line.
+  Penalty for putting the return type of a function onto its own line.
 
 **PointerAlignment** (``PointerAlignmentStyle``) :versionbadge:`clang-format 3.7`
   Pointer and reference alignment style.

clang/unittests/Format/FormatTest.cpp

@@ -23320,7 +23320,10 @@ TEST(FormatStyle, GetStyleOfFile) {
                          llvm::MemoryBuffer::getMemBuffer(
                              "BasedOnStyle: InheritParentConfig\n"
                              "WhitespaceSensitiveMacros: ['FOO', 'BAR']")));
-  std::vector<std::string> NonDefaultWhiteSpaceMacros{"FOO", "BAR"};
+  std::vector<std::string> NonDefaultWhiteSpaceMacros =
+      Style9->WhitespaceSensitiveMacros;
+  NonDefaultWhiteSpaceMacros[0] = "FOO";
+  NonDefaultWhiteSpaceMacros[1] = "BAR";
 
   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
@@ -23376,8 +23379,8 @@ TEST(FormatStyle, GetStyleOfFile) {
   ASSERT_EQ(*Style9, SubSubStyle);
 
   // Test 9.6: use command line style with inheritance
-  Style9 = getStyle("{BasedOnStyle: InheritParentConfig}", "/e/sub/code.cpp",
-                    "none", "", &FS);
+  Style9 = getStyle("{BasedOnStyle: InheritParentConfig}",
+                    "/e/sub/sub/code.cpp", "none", "", &FS);
   ASSERT_TRUE(static_cast<bool>(Style9));
   ASSERT_EQ(*Style9, SubSubStyle);