Refactor: use the DeclarationNameInfo form of BuildMemberReferenceExpr
consistently, rather than sometimes performing lookup and calling the
LookupResult form. No functionality change intended.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@209941 91177308-0d34-0410-b5e6-96231b3b80d8