[Polly-ACC] Fix test after IR-printer change.

After r367755, even unnamed parameters are printed in IR dumps. Change
the test to expect te additional %0 in the line.

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@368763 91177308-0d34-0410-b5e6-96231b3b80d8