Dependences: Use ostream printer to print analysis output

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@186288 91177308-0d34-0410-b5e6-96231b3b80d8
ScopDetect: clang-format

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@186289 91177308-0d34-0410-b5e6-96231b3b80d8