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

[Snehasish Kumar 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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snehasish wrote:

Maybe the ICP case is good to cover with this statistic too? Then we can keep the name and description as is. 

Not a strong opinion, feel free to just update the description as you suggested as an alternative.

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