Fix an OpenCL test case that was OpenCL conformant.
It had program scope variables that were not in the constant address space,
make them to be function scope variables instead.
Also move the test to the SemaOpenCL directory.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173352 91177308-0d34-0410-b5e6-96231b3b80d8