Catch all functions containing a certain string

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@208190 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unnecessary struct in return type

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@208191 91177308-0d34-0410-b5e6-96231b3b80d8