Debug Info: Pass the pointer size into createMemberPointerType().
Paired commit with LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@224781 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused test input.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@224784 91177308-0d34-0410-b5e6-96231b3b80d8