[clang] Use tag name lookup for class names (PR #112166)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff b800ff67dae59e194c8e9fc5d795a5932dc726f8 e9d43ef25b882071822cf3f16a988197c07967b1 --extensions cpp -- clang/lib/Sema/SemaDecl.cpp clang/test/CXX/class.derived/p2.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 5cce92ef11..97e4539f72 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -360,8 +360,7 @@ ParsedType Sema::getTypeName(const IdentifierInfo &II, SourceLocation NameLoc,
   // In case we know that the identifier is a class name, we know that it is
   // a type declaration (struct, class, union or enum) so we can use tag name
   // lookup.
-  LookupNameKind Kind = isClassName ? LookupTagName :
-                                      LookupOrdinaryName;
+  LookupNameKind Kind = isClassName ? LookupTagName : LookupOrdinaryName;
   LookupResult Result(*this, &II, NameLoc, Kind);
   if (LookupCtx) {
     // Perform "qualified" name lookup into the declaration context we

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https://github.com/llvm/llvm-project/pull/112166