[compiler-rt] [sanitizer] Fail __sanitizer_symbolize_demangle instead of returning input (PR #66006)

[via llvm-commits]

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@@ -117,8 +118,9 @@ void __sanitizer_symbolize_flush() {
 
 bool __sanitizer_symbolize_demangle(const char *Name, char *Buffer,
                                    int MaxLength) {
-  std::string Result =
-      llvm::symbolize::LLVMSymbolizer::DemangleName(Name, nullptr);
+  std::string Result;
+  if (!llvm::nonMicrosoftDemangle(Name, Result))
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kstoimenov wrote:

Where is that defined?

https://github.com/llvm/llvm-project/pull/66006