Adapt to LLVM dropping CfiFunctionIndex::begin()/end() After https://github.com/llvm/llvm-project/pull/130382, RustWrapper needs to call CfiFunctionIndex::symbols() instead.
Adapt to LLVM dropping CfiFunctionIndex::begin()/end() After https://github.com/llvm/llvm-project/pull/130382, RustWrapper needs to call CfiFunctionIndex::symbols() instead.