[PATCH] D27387: [libc++] Add a key function for bad_function_call

[Eric Fiselier via Phabricator via cfe-commits]

EricWF requested changes to this revision.
EricWF added a comment.
This revision now requires changes to proceed.

OK. I would like to see this change introduced under a `_LIBCPP_ABI` flag. I'll take a look at this again after that.


https://reviews.llvm.org/D27387