Cleaning up testing branch

git-svn-id: https://llvm.org/svn/llvm-project/polly/branches/google@220746 91177308-0d34-0410-b5e6-96231b3b80d8
Updating branches/google/testing to r220284

git-svn-id: https://llvm.org/svn/llvm-project/polly/branches/google@220754 91177308-0d34-0410-b5e6-96231b3b80d8
Cleaning up stable branch

git-svn-id: https://llvm.org/svn/llvm-project/polly/branches/google@220788 91177308-0d34-0410-b5e6-96231b3b80d8
Updating branches/google/stable to r220284

git-svn-id: https://llvm.org/svn/llvm-project/polly/branches/google@220796 91177308-0d34-0410-b5e6-96231b3b80d8