[llvm] [MemProf] Don't mutate the function type when calling clone (PR #147829)

[Teresa Johnson via llvm-commits]

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@@ -95,6 +95,7 @@ STATISTIC(NewMergedNodes, "Number of new nodes created during merging");
 STATISTIC(NonNewMergedNodes, "Number of non new nodes used during merging");
 STATISTIC(MissingAllocForContextId,
           "Number of missing alloc nodes for context ids");
+STATISTIC(SkippedCallsCloning, "Number of calls skipped during cloning");
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teresajohnson wrote:

I think I will update the description for this one as I suggested, since I'd like to know specifically if/when we hit this case. I'll add a separate stat for the other case(s) when I get a chance.

https://github.com/llvm/llvm-project/pull/147829