[x86] Make this test check everything for both SSE2 and AVX1 modes,
using a common 'all' prefix for the common test output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217063 91177308-0d34-0410-b5e6-96231b3b80d8
unique_ptrify a bunch of stuff through RuntimeDyld::loadObject

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217065 91177308-0d34-0410-b5e6-96231b3b80d8