1 files changed, 4 insertions, 2 deletions
diff --git a/deps/v8/src/frames.h b/deps/v8/src/frames.h
index 8ab4be905..e250609fd 100644
--- a/deps/v8/src/frames.h
+++ b/deps/v8/src/frames.h
@@ -28,7 +28,8 @@
 #ifndef V8_FRAMES_H_
 #define V8_FRAMES_H_
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 typedef uint32_t RegList;
 
@@ -442,7 +443,8 @@ class ArgumentsAdaptorFrame: public JavaScriptFrame {
   // the sentinel as its context, it is an arguments adaptor frame. It
   // must be tagged as a small integer to avoid GC issues. Crud.
   enum {
-    SENTINEL = (1 << kSmiTagSize) | kSmiTag
+    SENTINEL = (1 << kSmiTagSize) | kSmiTag,
+    NON_SENTINEL = ~SENTINEL
   };
 
   virtual Type type() const { return ARGUMENTS_ADAPTOR; }