Add a -Wc++98-compat warning for friend functions of class templates which would
be implicitly instantiated (resulting in a redefinition) in C++98.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142468 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed