silence a warning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29734 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/ADT/SmallVector.h b/include/llvm/ADT/SmallVector.h
index 66e268c..bd2f260 100644
--- a/include/llvm/ADT/SmallVector.h
+++ b/include/llvm/ADT/SmallVector.h
@@ -213,6 +213,7 @@
   
   // Set end.
   End = Begin+RHSSize;
+  return *this;
 }
   
 /// SmallVector - This is a 'vector' (really, a variable-sized array), optimized