[clang][NewPM] Add RUNS for tests that produce slightly different IR under new PM

For CodeGenOpenCL/convergent.cl, the new PM produced a slightly different for
loop, but this still checks for no loop unrolling as intended. This is
committed separately from D63174.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@364202 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed