[proxies] Make Object.{freeze,seal} behave correctly for proxies.

test/mjsunit/harmony/proxies-hash.js

 // Copyright 2011 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 14 matching lines @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Flags: --harmony-proxies
 
 
 // Helper.
 
 function TestWithProxies(test, construct, handler) {
   test(construct, handler, function(h) { return new Proxy({}, h) })
-  test(construct, handler, function(h) {
-    return Proxy.createFunction(h, function() {})
-  })
+  // TODO(cbruni): Adapt and enable once we have [[Call]] working.
+  // test(construct, handler, function(h) {
+  //  return Proxy.createFunction(h, function() {})
+  // })
 }
 
 
 // Sets.
 
 function TestSet(construct, fix) {
   TestWithProxies(TestSet2, construct, fix)
 }
 
 function TestSet2(construct, fix, create) {
@@ skipping 15 matching lines @@
   assertTrue(s.has(p1));
   assertTrue(s.has(p2));
   assertFalse(s.has(p3));
 
   s.delete(p2);
   assertTrue(s.has(p1));
   assertFalse(s.has(p2));
   assertFalse(s.has(p3));
 }
 
-// TODO(neis): Reenable once proxies properly support these operations.
-// TestSet(Set, Object.seal)
-// TestSet(Set, Object.freeze)
-// TestSet(Set, Object.preventExtensions)
+TestSet(Set, Object.seal)
+TestSet(Set, Object.freeze)
+TestSet(Set, Object.preventExtensions)
 
 
 // Maps and weak maps.
 
 function TestMap(construct, fix) {
   TestWithProxies(TestMap2, construct, fix)
 }
 
 function TestMap2(construct, fix, create) {
   var handler = {fix: function() { return {} }}
@@ skipping 20 matching lines @@
   assertSame(321, m.get(p2));
 
   m.delete(p2);
   assertTrue(m.has(p1));
   assertFalse(m.has(p2));
   assertFalse(m.has(p3));
   assertSame(123, m.get(p1));
   assertSame(undefined, m.get(p2));
 }
 
-// TODO(neis): Reenable once proxies properly support these operations.
-// TestMap(Map, Object.seal)
-// TestMap(Map, Object.freeze)
-// TestMap(Map, Object.preventExtensions)
+TestMap(Map, Object.seal)
+TestMap(Map, Object.freeze)
+TestMap(Map, Object.preventExtensions)
 
-// TODO(neis): Reenable once proxies properly support these operations.
-// TestMap(WeakMap, Object.seal)
-// TestMap(WeakMap, Object.freeze)
-// TestMap(WeakMap, Object.preventExtensions)
+TestMap(WeakMap, Object.seal)
+TestMap(WeakMap, Object.freeze)
+TestMap(WeakMap, Object.preventExtensions)