[llvm] [MergeFunctions] Add support to run the pass over a set of function pointers (PR #111045)

[Stephen Tozer via llvm-commits]

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@@ -409,24 +428,36 @@ static bool isEligibleForMerging(Function &F) {
          !hasDistinctMetadataIntrinsic(F);
 }
 
-bool MergeFunctions::runOnModule(Module &M) {
+template <typename FuncContainer>
+bool MergeFunctions::runOnModule(FuncContainer &M) {
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SLTozer wrote:

The name should probably change since it now takes different types.
```suggestion
bool MergeFunctions::run(FuncContainer &M) {
```

https://github.com/llvm/llvm-project/pull/111045