Remove Weak{Map,Set}.prototype.clear.

test/mjsunit/es6/collections.js

 // Copyright 2012 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 248 matching lines @@
 assertTrue(Map.prototype.clear instanceof Function)
 
 
 // Test some common JavaScript idioms for WeakMaps
 var m = new WeakMap;
 assertTrue(m instanceof WeakMap);
 assertTrue(WeakMap.prototype.set instanceof Function)
 assertTrue(WeakMap.prototype.get instanceof Function)
 assertTrue(WeakMap.prototype.has instanceof Function)
 assertTrue(WeakMap.prototype.delete instanceof Function)
-assertTrue(WeakMap.prototype.clear instanceof Function)
 
 
 // Test some common JavaScript idioms for WeakSets
 var s = new WeakSet;
 assertTrue(s instanceof WeakSet);
 assertTrue(WeakSet.prototype.add instanceof Function)
 assertTrue(WeakSet.prototype.has instanceof Function)
 assertTrue(WeakSet.prototype.delete instanceof Function)
-assertTrue(WeakSet.prototype.clear instanceof Function)
 
 
 // Test class of instance and prototype.
 assertEquals("Set", %_ClassOf(new Set))
 assertEquals("Object", %_ClassOf(Set.prototype))
 assertEquals("Map", %_ClassOf(new Map))
 assertEquals("Object", %_ClassOf(Map.prototype))
 assertEquals("WeakMap", %_ClassOf(new WeakMap))
 assertEquals("Object", %_ClassOf(WeakMap.prototype))
 assertEquals("WeakSet", %_ClassOf(new WeakSet))
@@ skipping 175 matching lines @@
   var m = new Map();
   m.set(42, true);
   assertTrue(m.has(42));
   assertEquals(1, m.size);
   m.clear();
   assertFalse(m.has(42));
   assertEquals(0, m.size);
 })();
 
 
-// Test WeakMap clear
-(function() {
-  var k = new Object();
-  var w = new WeakMap();
-  w.set(k, 23);
-  assertTrue(w.has(k));
-  assertEquals(23, w.get(k));
-  w.clear();
-  assertFalse(w.has(k));
-  assertEquals(undefined, w.get(k));
-})();
-
-
-// Test WeakSet clear
-(function() {
-  var k = new Object();
-  var w = new WeakSet();
-  w.add(k);
-  assertTrue(w.has(k));
-  w.clear();
-  assertFalse(w.has(k));
-})();
-
-
 (function TestMinusZeroSet() {
   var s = new Set();
   s.add(-0);
   assertSame(0, s.values().next().value);
   s.add(0);
   assertEquals(1, s.size);
   assertTrue(s.has(0));
   assertTrue(s.has(-0));
 })();
 
@@ skipping 917 matching lines @@
 TestMapConstructorIterableValue(WeakMap);
 
 function TestCollectionToString(C) {
   assertEquals("[object " + C.name + "]",
       Object.prototype.toString.call(new C()));
 }
 TestCollectionToString(Map);
 TestCollectionToString(Set);
 TestCollectionToString(WeakMap);
 TestCollectionToString(WeakSet);