Richard Smith 6401768ac4 Reinstate r186040, with additional fixes and more test coverage (reverted in ...

r186331).

Original commit log:
  If we friend a declaration twice, that should not make it visible to
  name lookup in the surrounding context. Slightly rework how we handle
  friend declarations to inherit the visibility of the prior
  declaration, rather than setting a friend declaration to be visible
  whenever there was a prior declaration.

llvm-svn: 186546

2013-07-17 23:53:16 +00:00

474 KiB

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