[clang] [clang][codegen] Mention the invariant that LLVM demangler should be … (PR #117346)

[Viktoriia Bakalova via cfe-commits]

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@@ -2047,6 +2047,14 @@ StringRef CodeGenModule::getMangledName(GlobalDecl GD) {
                  GD.getWithKernelReferenceKind(KernelReferenceKind::Kernel),
                  ND));
 
+  // This invariant should hold true in the future.
+  // Prior work:
+  // https://discourse.llvm.org/t/rfc-clang-diagnostic-for-demangling-failures/82835/8
+  // https://github.com/llvm/llvm-project/issues/111345
+  // assert(llvm::isMangledName(MangledName) &&
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VitaNuo wrote:

No, it doesn't exist. This was to demonstrate the idea.

Thanks, sure, I can change the text.

https://github.com/llvm/llvm-project/pull/117346