MS ABI: Correctly mangle CV qualifiers from typedefs

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@221344 91177308-0d34-0410-b5e6-96231b3b80d8
Support LLVM_BUILD_STATIC.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@221346 91177308-0d34-0410-b5e6-96231b3b80d8