[Mlir-commits] [mlir] [mlir][func] Fix multiple bugs in `DuplicateFunctionElimination` (PR #109571)

[Longsheng Mou]

CoTinker wrote:

In the following scenario, `SymbolTable::replaceAllSymbolUses` is also inside a loop.
https://github.com/llvm/llvm-project/blob/0df88802c69814e7fce662da14f70580e2df4c34/mlir/lib/Dialect/SPIRV/Linking/ModuleCombiner/ModuleCombiner.cpp#L214-L243

https://github.com/llvm/llvm-project/pull/109571