[PATCH] D21767: Fix instantiation of friend function templates

[John McCall via Phabricator via cfe-commits]

rjmccall added a comment.

Shouldn't there just be a link in the AST from the instantiated `FunctionTemplateDecl ` back to the original pattern?  Maybe a generalization of `InstantiatedFromMember` in `RedeclarablableTemplateDecl`?


Repository:
  rC Clang

https://reviews.llvm.org/D21767