Don't walk the translation unit context to produce protocol names when
global code completions are disabled (e.g., because they are
cached). Also, make sure that forward-declared protocols are visited
when we look for all visible names within a declaration context.

Previously, we would end up with duplicate completions for protocols.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121416 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed