Make -Wignored-qualifiers point to the first ignored qualifier.

In code such as "char* volatile const j()", Clang warns that "volatile
const" will be ignored. Make it point to the first ignored qualifier,
and simplify the code a bit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132563 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed