[proxies] Fix JSObject::AllCanRead for Proxies on the prototype chain

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index bfb58b87919869702f9736c6c95285bccb08cc79..6b951203a02e52ecbd3cc5a0e05bcfabfcb3bd85 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -1188,6 +1188,9 @@ bool JSObject::AllCanRead(LookupIterator* it) {
       }
     } else if (it->state() == LookupIterator::INTERCEPTOR) {
       if (it->GetInterceptor()->all_can_read()) return true;
+    } else if (it->state() == LookupIterator::JSPROXY) {
+      // Stop lookupiterating. And no, AllCanNotRead.

[Jakob Kummerow, 2015/12/11 14:52:28]

Do you like this comment, or is it too friday?

+      return false;
     }
   }
   return false;