[llvm] [CodeGen][NPM] Port VirtRegRewriter to NPM (PR #130564)

[Pierre van Houtryve via llvm-commits]

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@@ -1502,6 +1502,19 @@ Expected<bool> parseMachineBlockPlacementPassOptions(StringRef Params) {
           inconvertibleErrorCode());
   }
   return AllowTailMerge;
+};
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Pierre-vh wrote:

extra semicolon here causes a build failure

https://github.com/llvm/llvm-project/pull/130564