[clang] [Clang] Diagnose nested inline asm variants (PR #232686)

[Oliver Hunt via cfe-commits]

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@@ -698,6 +698,7 @@ unsigned GCCAsmStmt::AnalyzeAsmString(SmallVectorImpl<AsmStringPiece>&Pieces,
   std::string CurStringPiece;
 
   bool HasVariants = !C.getTargetInfo().hasNoAsmVariants();
+  bool InVariant = false;
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ojhunt wrote:

I'd rather a different name for this - `InVariant` was difficult to read because obviously "invariant" is a word, with a very different meaning. `IsParsingVariant` or something would probably be clearer.

https://github.com/llvm/llvm-project/pull/232686