[clang] Add a flag to preserve the old macro behaviour. (PR #174895)

[Snehasish Kumar via cfe-commits]

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@@ -6279,11 +6293,17 @@ void CGDebugInfo::EmitGlobalAlias(const llvm::GlobalValue *GV,
 }
 
 void CGDebugInfo::AddStringLiteralDebugInfo(llvm::GlobalVariable *GV,
+
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snehasish wrote:

Cleaned up.

https://github.com/llvm/llvm-project/pull/174895