[OpenMP] Output written by tests should go to build directory
[OpenMP] Output written by tests should go to build directory

git-svn-id: f99161ee8ccfe2101cbe1bdda2220bce2ed25485@351332 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/openmp,llvm-mirror/openmp,llvm-mirror/openmp,llvm-mirror/openmp,llvm-mirror/openmp