Throw TypeError when reading global references through a JSProxy

src/messages.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // The infrastructure used for (localized) message reporting in V8.
 //
 // Note: there's a big unresolved issue about ownership of the data
 // structures used by this framework.
 
 #ifndef V8_MESSAGES_H_
@@ skipping 251 matching lines @@
   T(ProxySetFrozenAccessor,                                                    \
     "'set' on proxy: trap returned truish for property '%' which exists in "   \
     "the proxy target as a non-configurable and non-writable accessor "        \
     "property without a setter")                                               \
   T(ProxySetPrototypeOfNonExtensible,                                          \
     "'setPrototypeOf' on proxy: trap returned truish for setting a new "       \
     "prototype on the non-extensible proxy target")                            \
   T(ProxyTrapReturnedFalsish, "'%' on proxy: trap returned falsish")           \
   T(ProxyTrapReturnedFalsishFor,                                               \
     "'%' on proxy: trap returned falsish for property '%'")                    \
+  T(ReadGlobalReferenceThroughProxy, "Trying to access '%' through proxy")     \
   T(RedefineDisallowed, "Cannot redefine property: %")                         \
   T(RedefineExternalArray,                                                     \
     "Cannot redefine a property of an object with external array elements")    \
   T(ReduceNoInitial, "Reduce of empty array with no initial value")            \
   T(RegExpFlags,                                                               \
     "Cannot supply flags when constructing one RegExp from another")           \
   T(RegExpNonObject, "% getter called on non-object %")                        \
   T(RegExpNonRegExp, "% getter called on non-RegExp object")                   \
   T(ReinitializeIntl, "Trying to re-initialize % object.")                     \
   T(ResolvedOptionsCalledOnNonObject,                                          \
@@ skipping 255 matching lines @@
   static Handle<String> GetMessage(Isolate* isolate, Handle<Object> data);
   static base::SmartArrayPointer<char> GetLocalizedMessage(Isolate* isolate,
                                                            Handle<Object> data);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_MESSAGES_H_