[clang-tools-extra] Add WarnOnModificationOfCopiedLoopVariable to performance-for-range-c… (PR #155731)

[Baranov Victor via cfe-commits]

vbvictor wrote:

As an alternative solution, your Idea can be a separate check but you should file an issue first to gather some initial feedback.

https://github.com/llvm/llvm-project/pull/155731