A member expression's base doesn't always have an impact on what the
member decl would evaluate to. In such a case, the base is used as a
poor man's scope qualifier.
This fixes PR26738.
Differential Revision: http://reviews.llvm.org/D17619
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261975 91177308-0d34-0410-b5e6-96231b3b80d8
David Majnemer