[test/CodeGen/ARM] Adpat test to match new codegen after r216274.
Moreover, rework some patterns to actually check the emitted instructions
instead of matching unrelated string!

E.g.,
some of the "// CHECK: vmov" were matching stuff like ".globl
funcname_with_vmov" instead of actual instructions.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@216275 91177308-0d34-0410-b5e6-96231b3b80d8