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

[Rafael Eckstein via llvm-commits]

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+//===- MergeFunctionsTest.cpp - Unit tests for
+// MergeFunctionsPass-----------===//
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Casperento wrote:

Resolved in [eae748a](https://github.com/llvm/llvm-project/pull/111045/commits/eae748a33a7c96230cb392d4fe8352af760a687f).

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