[clang] [clang-tools-extra] [clang][TypePrinter] Introduce AnonymousTagMode enum (PR #182317)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- clang-tools-extra/clangd/AST.cpp clang-tools-extra/clangd/FindSymbols.cpp clang-tools-extra/clangd/Hover.cpp clang-tools-extra/clangd/InlayHints.cpp clang/include/clang/AST/PrettyPrinter.h clang/lib/AST/Decl.cpp clang/lib/ASTMatchers/ASTMatchersInternal.cpp clang/lib/ExtractAPI/ExtractAPIConsumer.cpp clang/lib/Index/USRGeneration.cpp clang/lib/Interpreter/InterpreterUtils.cpp clang/lib/Sema/SemaChecking.cpp clang/lib/Sema/SemaCodeComplete.cpp clang/lib/Tooling/ASTDiff/ASTDiff.cpp clang/tools/libclang/CIndex.cpp clang/unittests/AST/TypePrinterTest.cpp clang/unittests/Tooling/QualTypeNamesTest.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index bb5649ace..4148e0ce1 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -4996,8 +4996,7 @@ void TagDecl::printAnonymousTagDecl(llvm::raw_ostream &OS,
     OS << ' ' << getKindName();
 
   if (Policy.AnonymousTagNameStyle ==
-          llvm::to_underlying(
-              PrintingPolicy::AnonymousTagMode::SourceLocation)) {
+      llvm::to_underlying(PrintingPolicy::AnonymousTagMode::SourceLocation)) {
     PresumedLoc PLoc =
         getASTContext().getSourceManager().getPresumedLoc(getLocation());
     if (PLoc.isValid()) {

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https://github.com/llvm/llvm-project/pull/182317