[strong] Implement strong property access semantics

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 212 matching lines @@
   T(StrictCannotAssign, "Cannot assign to read only '% in strict mode")        \
   T(StrictDeleteProperty, "Cannot delete property '%' of %")                   \
   T(StrictPoisonPill,                                                          \
     "'caller', 'callee', and 'arguments' properties may not be accessed on "   \
     "strict mode functions or the arguments objects for calls to them")        \
   T(StrictReadOnlyProperty, "Cannot assign to read only property '%' of %")    \
   T(StrongArity,                                                               \
     "In strong mode, calling a function with too few arguments is deprecated") \
   T(StrongDeleteProperty,                                                      \
     "On strong object %, deletion of property % is deprecated")                \
-  T(StrongImplicitCast, "In strong mode, implicit conversions are deprecated") \
+  T(StrongImplicitConversion,                                                  \
+    "In strong mode, implicit conversions are deprecated")                     \
   T(StrongRedefineDisallowed,                                                  \
     "On strong object %, redefining writable, non-configurable property '%' "  \
     "to be non-writable is deprecated")                                        \
   T(StrongSetProto,                                                            \
     "On strong object %, redefining the internal prototype is deprecated")     \
   T(SymbolKeyFor, "% is not a symbol")                                         \
   T(SymbolToPrimitive,                                                         \
     "Cannot convert a Symbol wrapper object to a primitive value")             \
   T(SymbolToNumber, "Cannot convert a Symbol value to a number")               \
   T(SymbolToString, "Cannot convert a Symbol value to a string")               \
@@ skipping 124 matching lines @@
   T(StrongEllision,                                                            \
     "In strong mode, arrays with holes are deprecated, use maps instead")      \
   T(StrongEmpty,                                                               \
     "In strong mode, empty sub-statements are deprecated, make them explicit " \
     "with '{}' instead")                                                       \
   T(StrongEqual,                                                               \
     "In strong mode, '==' and '!=' are deprecated, use '===' and '!==' "       \
     "instead")                                                                 \
   T(StrongForIn,                                                               \
     "In strong mode, 'for'-'in' loops are deprecated, use 'for'-'of' instead") \
+  T(StrongPropertyAccess,                                                      \
+    "In strong mode, accessing missing property '%' of % is deprecated")       \
   T(StrongSuperCallDuplicate,                                                  \
     "In strong mode, invoking the super constructor multiple times is "        \
     "deprecated")                                                              \
   T(StrongSuperCallMisplaced,                                                  \
     "In strong mode, the super constructor must be invoked before any "        \
     "assignment to 'this'")                                                    \
   T(StrongSwitchFallthrough,                                                   \
     "In strong mode, switch fall-through is deprecated, terminate each case "  \
     "with 'break', 'continue', 'return' or 'throw'")                           \
   T(StrongUndefined,                                                           \
@@ skipping 64 matching lines @@
 
   static void DefaultMessageReport(Isolate* isolate, const MessageLocation* loc,
                                    Handle<Object> message_obj);
   static Handle<String> GetMessage(Isolate* isolate, Handle<Object> data);
   static SmartArrayPointer<char> GetLocalizedMessage(Isolate* isolate,
                                                      Handle<Object> data);
 };
 } }  // namespace v8::internal
 
 #endif  // V8_MESSAGES_H_