[PATCH] D35797: [ELF] - Implement --warn-once.

[Rui Ueyama via Phabricator via llvm-commits]

ruiu added a comment.

(By the way, I wouldn't do this, but even if we would do, I wouldn't take the approach that is implemented in this patch because I don't want to mess up the Symbol data structure for this feature as it is too much. I'd instead make a change to Error.cpp so that no messages are printed out more than once. But, again, I wouldn't do that.)


https://reviews.llvm.org/D35797