Update users of RefactoringTool
    
RefactoringTool::run() no longer writes changes to disk automatically. Updating users of RefactoringTool to explicitly perform the write.
    
Reviewers: klimek



git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@172218 91177308-0d34-0410-b5e6-96231b3b80d8