Some of the shared compiler/linker flags start with -m, so they've been
getting passed to the compiler only since r180073. Now, the -m* wildcard
is processed after the shared flags and the ignored flags.

Found by Laszlo Nagy!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193184 91177308-0d34-0410-b5e6-96231b3b80d8