[AArch64] Tests for legacy AArch32 NEON scalar shift by immediate instructions.
A number of non-overloaded intrinsics have been replaced by thier overloaded
counterparts.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194599 91177308-0d34-0410-b5e6-96231b3b80d8