[PATCH] D29877: Warn about unused static file scope function template declarations.

[Alex Lorenz via Phabricator via cfe-commits]

arphaman added a comment.

The operators in PointerUnion seem useful. I don't think they should be removed even if they're not used in tree, since they might be used by some out-of-tree code.


https://reviews.llvm.org/D29877