Eliminate Sema::ObjCAliasDecls. This is based on Steve's fix, but also
updates name lookup so that we see through @compatibility_alias
declarations to their underlying interfaces.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69950 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed