switch TextDiagnosticPrinter to raw_ostream.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59597 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/clang.cpp b/Driver/clang.cpp
index 4314180..ead8734 100644
--- a/Driver/clang.cpp
+++ b/Driver/clang.cpp
@@ -1443,7 +1443,8 @@
   
   if (!VerifyDiagnostics) {
     // Print diagnostics to stderr by default.
-    TextDiagClient = new TextDiagnosticPrinter(!NoShowColumn,
+    TextDiagClient = new TextDiagnosticPrinter(llvm::errs(),
+                                               !NoShowColumn,
                                                !NoCaretDiagnostics);
   } else {
     // When checking diagnostics, just buffer them up.