Add missing flush call.  This is an attempt to fix a broken Windows buildbot.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146760 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/APValue.cpp b/lib/AST/APValue.cpp
index 0d4dea8..2a68341 100644
--- a/lib/AST/APValue.cpp
+++ b/lib/AST/APValue.cpp
@@ -480,6 +480,7 @@
   std::string Result;
   llvm::raw_string_ostream Out(Result);
   printPretty(Out, Ctx, Ty);
+  Out.flush();
   return Result;
 }