[runtime] support new Proxy() instead of Proxy.create and install getPrototypeOf trap

test/mjsunit/es6/iteration-semantics.js

 // Copyright 2013 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 291 matching lines @@
                          function() { return "break" }));
 assertEquals(false,
              try_control(integers_until(10),
                          function() { return "continue" }));
 assertEquals(5,
              try_control(integers_until(10),
                          function(x) { return (x == 5) ? x : "continue" }));
 
 // Proxy results, with getters.
 function transparent_proxy(x) {
-  return Proxy.create({
+  return new Proxy({}, {
     get: function(receiver, name) { return x[name]; }
   });
 }
 assertEquals([1, 2],
              fold(append, [],
                   results([one_time_getter({ value: 1 }, 'done', false),
                            one_time_getter({ done: false }, 'value', 2),
                            { value: 37, done: true },
                            never_getter(never_getter({}, 'done'), 'value')]
                           .map(transparent_proxy))));
 
 // Proxy iterators.
 function poison_proxy_after(iterable, n) {
   var iterator = iterable[Symbol.iterator]();
-  return wrap_iterator(Proxy.create({
+  return wrap_iterator(new Proxy({}, {
     get: function(receiver, name) {
       if (name == 'next' && n-- < 0) throw "unreachable";
       return iterator[name];
     },
     // Needed for integers_until(10)'s this.n++.
     set: function(receiver, name, val) {
       return iterator[name] = val;
     }
   }));
 }
@@ skipping 13 matching lines @@
   assertInstanceof(ex, TypeError);
   assertEquals(message, ex.message);
   assertArrayEquals([1, undefined], arr);
 }
 test_iterator_result_object_non_object(null);
 test_iterator_result_object_non_object(undefined);
 test_iterator_result_object_non_object(42);
 test_iterator_result_object_non_object('abc');
 test_iterator_result_object_non_object(false);
 test_iterator_result_object_non_object(Symbol('x'), 'Symbol(x)');