Try harder about not suggesting methods as corrections when they

Try harder about not suggesting methods as corrections when they
obviously won't work. Specifically, don't suggest methods (static or
not) from unrelated classes when the expression is a method call
through a specific object.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@205653 91177308-0d34-0410-b5e6-96231b3b80d8