Add a write(raw_ostream&) method to RewriteBuffer. This uses an inefficient
implementation today but is the right place if we want to make it faster some
day.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101521 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/FixItRewriter.cpp b/lib/Frontend/FixItRewriter.cpp
index b264012..7aff923 100644
--- a/lib/Frontend/FixItRewriter.cpp
+++ b/lib/Frontend/FixItRewriter.cpp
@@ -39,7 +39,7 @@
 bool FixItRewriter::WriteFixedFile(FileID ID, llvm::raw_ostream &OS) {
   const RewriteBuffer *RewriteBuf = Rewrite.getRewriteBufferFor(ID);
   if (!RewriteBuf) return true;
-  OS << std::string(RewriteBuf->begin(), RewriteBuf->end());
+  RewriteBuf->write(OS);
   OS.flush();
   return false;
 }