Merge bleeding edge up to 8774 into the GC branch.

src/messages.js

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 177 matching lines @@
       getter_must_be_callable:      ["Getter must be a function: ", "%0"],
       setter_must_be_callable:      ["Setter must be a function: ", "%0"],
       value_and_accessor:           ["Invalid property.  A property cannot both have accessors and be writable or have a value: ", "%0"],
       proto_object_or_null:         ["Object prototype may only be an Object or null"],
       property_desc_object:         ["Property description must be an object: ", "%0"],
       redefine_disallowed:          ["Cannot redefine property: ", "%0"],
       define_disallowed:            ["Cannot define property:", "%0", ", object is not extensible."],
       non_extensible_proto:         ["%0", " is not extensible"],
       handler_non_object:           ["Proxy.", "%0", " called with non-object as handler"],
       handler_trap_missing:         ["Proxy handler ", "%0", " has no '", "%1", "' trap"],
-      handler_failed:               ["Proxy handler ", "%0", " returned false for '", "%1", "' trap"],
+      handler_trap_must_be_callable: ["Proxy handler ", "%0", " has non-callable '", "%1", "' trap"],
+      handler_returned_false:       ["Proxy handler ", "%0", " returned false for '", "%1", "' trap"],
+      handler_returned_undefined:   ["Proxy handler ", "%0", " returned undefined for '", "%1", "' trap"],
       proxy_prop_not_configurable:  ["Trap ", "%1", " of proxy handler ", "%0", " returned non-configurable descriptor for property ", "%2"],
       proxy_non_object_prop_names:  ["Trap ", "%1", " returned non-object ", "%0"],
       proxy_repeated_prop_name:     ["Trap ", "%1", " returned repeated property name ", "%2"],
       // RangeError
       invalid_array_length:         ["Invalid array length"],
       stack_overflow:               ["Maximum call stack size exceeded"],
       // SyntaxError
       unable_to_parse:              ["Parse error"],
       duplicate_regexp_flag:        ["Duplicate RegExp flag ", "%0"],
       invalid_regexp:               ["Invalid RegExp pattern /", "%0", "/"],
@@ skipping 834 matching lines @@
   var raw_stack = %CollectStackTrace(cons_opt
                                      ? cons_opt
                                      : captureStackTrace, stackTraceLimit);
   DefineOneShotAccessor(obj, 'stack', function (obj) {
     return FormatRawStackTrace(obj, raw_stack);
   });
 };
 
 $Math.__proto__ = global.Object.prototype;
 
-DefineError(function Error() { });
-DefineError(function TypeError() { });
-DefineError(function RangeError() { });
-DefineError(function SyntaxError() { });
-DefineError(function ReferenceError() { });
-DefineError(function EvalError() { });
-DefineError(function URIError() { });
+// DefineError is a native function. Use explicit receiver. Otherwise
+// the receiver will be 'undefined'.
+this.DefineError(function Error() { });
+this.DefineError(function TypeError() { });
+this.DefineError(function RangeError() { });
+this.DefineError(function SyntaxError() { });
+this.DefineError(function ReferenceError() { });
+this.DefineError(function EvalError() { });
+this.DefineError(function URIError() { });
 
 $Error.captureStackTrace = captureStackTrace;
 
 // Setup extra properties of the Error.prototype object.
 function setErrorMessage() {
   var desc = {value: '',
               enumerable: false,
               configurable: true,
               writable: true };
   DefineOwnProperty($Error.prototype,
@@ skipping 45 matching lines @@
     else throw e;
   }
 }
 
 
 InstallFunctions($Error.prototype, DONT_ENUM, ['toString', errorToString]);
 
 // Boilerplate for exceptions for stack overflows. Used from
 // Isolate::StackOverflow().
 const kStackOverflowBoilerplate = MakeRangeError('stack_overflow', []);