[llvm] [ctx_prof] Fix checks in `PGOCtxprofFlattening` (PR #108467)

[Mircea Trofin via llvm-commits]

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@@ -0,0 +1,54 @@
+; RUN: split-file %s %t
+; RUN: llvm-ctxprof-util fromJSON --input=%t/profile.json --output=%t/profile.ctxprofdata
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mtrofin wrote:

done.

https://github.com/llvm/llvm-project/pull/108467