Merge from Google internal for 3.4 release
diff --git a/js/proto3_test.proto b/js/proto3_test.proto
index acb6716..0d073ea 100644
--- a/js/proto3_test.proto
+++ b/js/proto3_test.proto
@@ -86,4 +86,5 @@
   PROTO3_FOO = 0;
   PROTO3_BAR = 1;
   PROTO3_BAZ = 2;
+  MSG_PROTO3_BAH = 3;
 }