Fix source range of implicitly instantiated friend declaration.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186702 91177308-0d34-0410-b5e6-96231b3b80d8
Add SourceRange to PPCallbacks::Defined callback.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186707 91177308-0d34-0410-b5e6-96231b3b80d8
Replace some existing type attribute diagnostics with a
single diagnostic that selects.  No functional changes intended.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186708 91177308-0d34-0410-b5e6-96231b3b80d8
[arcmt] After checking is successful disable auto-synthesize to avoid "@synthesize of 'weak' property is only
allowed in ARC" errors.

rdar://14461559

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186709 91177308-0d34-0410-b5e6-96231b3b80d8