Adjust key behaviour for weak collections

test/mjsunit/es6/symbols.js

Index: test/mjsunit/es6/symbols.js
diff --git a/test/mjsunit/es6/symbols.js b/test/mjsunit/es6/symbols.js
index b9811f509e21b78f99ef386c24f33e25f9a66acd..46c3daba8a177c6dce414b1efe6e1c334e2aa147 100644
--- a/test/mjsunit/es6/symbols.js
+++ b/test/mjsunit/es6/symbols.js
@@ -245,25 +245,20 @@ TestCall()
 function TestCollections() {
   var set = new Set
   var map = new Map
-  var weakmap = new WeakMap
   for (var i in symbols) {
     set.add(symbols[i])
     map.set(symbols[i], i)
-    weakmap.set(symbols[i], i)
   }
   assertEquals(symbols.length, set.size)
   assertEquals(symbols.length, map.size)
   for (var i in symbols) {
     assertTrue(set.has(symbols[i]))
     assertTrue(map.has(symbols[i]))
-    assertTrue(weakmap.has(symbols[i]))
     assertEquals(i, map.get(symbols[i]))
-    assertEquals(i, weakmap.get(symbols[i]))
   }
   for (var i in symbols) {
     assertTrue(set.delete(symbols[i]))
     assertTrue(map.delete(symbols[i]))
-    assertTrue(weakmap.delete(symbols[i]))
   }
   assertEquals(0, set.size)
   assertEquals(0, map.size)