Fix a comment.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187502 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC arc: Move check for type conversions in arc
out of ImpCastExprToType and to the caller site
as appropriate. This is in prep. to do more work for
// rdar://14569171 


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187503 91177308-0d34-0410-b5e6-96231b3b80d8
Improve the diagnostic experience, including adding recovery, for
changing '->' to '.' when there is no operator-> defined for a class.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187504 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC arc: Introduce a new initialization kind
for parameters passed to CF audited functions
to be used for better diagnostics. Current set but
unused. // rdar://14569171


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187508 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC arc: minor refactoring in my last patch
to avoid future false positives. // rdar://14569171


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187509 91177308-0d34-0410-b5e6-96231b3b80d8