[clang] [clang] Simplify the overload resolution logic for operator new and new[] (PR #211482)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- clang/include/clang/Sema/DynamicAllocationArgumentsCXX.h clang/test/SemaCXX/microsoft-new-array-fallback.cpp clang/test/SemaCXX/type-aware-new-invalid-alignvalt-cache.cpp clang/include/clang/Sema/Sema.h clang/lib/Sema/SemaCoroutine.cpp clang/lib/Sema/SemaExprCXX.cpp clang/test/SemaCXX/type-aware-new-invalid-type-identity.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/Sema/SemaExprCXX.cpp b/clang/lib/Sema/SemaExprCXX.cpp
index f15dca03b..7aa9b31ee 100644
--- a/clang/lib/Sema/SemaExprCXX.cpp
+++ b/clang/lib/Sema/SemaExprCXX.cpp
@@ -2946,7 +2946,8 @@ DiagnoseAllocationLookupFailure(Sema &SemaRef, const LookupResult &R,
 
 std::optional<Expr *> Sema::getTypeIdentityArgument(QualType Type,
                                                     SourceLocation Loc) {
-  if (auto Found = AllocationTypeIdentityArguments.find(Type); Found != AllocationTypeIdentityArguments.end())
+  if (auto Found = AllocationTypeIdentityArguments.find(Type);
+      Found != AllocationTypeIdentityArguments.end())
     return Found->second;
 
   QualType TypeIdentity = tryBuildStdTypeIdentity(Type, Loc);

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https://github.com/llvm/llvm-project/pull/211482