[PATCH] D21508: Make friend function template definition available if class is instantiated.

[Serge Pavlov via cfe-commits]

sepavloff created this revision.
sepavloff added a reviewer: rsmith.
sepavloff added a subscriber: cfe-commits.

Similar to friend functions, if a friend function template is defined in a
class template, its definition is available only if the class is instantiated.

http://reviews.llvm.org/D21508

Files:
  include/clang/AST/DeclTemplate.h
  lib/AST/DeclTemplate.cpp
  lib/Sema/SemaDecl.cpp
  test/SemaCXX/friend2.cpp

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