Bug 978811 - Fix isFakeExitFrame to return true for entry frames. r=nbp

js/src/jit/IonFrames-inl.h

@@ -56,7 +56,8 @@ JitFrameIterator::isFakeExitFrame() const
 {
     bool res = (prevType() == JitFrame_Unwound_Rectifier ||
                 prevType() == JitFrame_Unwound_IonJS ||
-                prevType() == JitFrame_Unwound_BaselineStub);
+                prevType() == JitFrame_Unwound_BaselineStub ||
+                (prevType() == JitFrame_Entry && type() == JitFrame_Exit));
     JS_ASSERT_IF(res, type() == JitFrame_Exit || type() == JitFrame_BaselineJS);
     return res;
 }