If a visibility update record is found for a DeclContext after that Decl has
already been loaded, apply that update record to the Decl immediately, rather
than adding it to a pending list and never applying it.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203534 91177308-0d34-0410-b5e6-96231b3b80d8