Switch on unit test regarding -Infinity and TypedArrays

test/mjsunit/es6/typedarray.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 545 matching lines @@
   assertEquals(10, a["-1e2"]);
   assertEquals(undefined, a[-1e2]);
 
   a["-0"] = 256;
   var s2 = "     -0";
   a[s2] = 255;
   assertEquals(undefined, a["-0"]);
   assertEquals(255, a[s2]);
   assertEquals(0, a[-0]);
 
-  /* Chromium bug: 424619
-   * a[-Infinity] = 50;
-   * assertEquals(undefined, a[-Infinity]);
-   */
+  a[-Infinity] = 50;
+  assertEquals(undefined, a[-Infinity]);
+
   a[1.5] = 10;
   assertEquals(undefined, a[1.5]);
   var nan = Math.sqrt(-1);
   a[nan] = 5;
   assertEquals(undefined, a[nan]);
 
   var x = 0;
   var y = -0;
   assertEquals(Infinity, 1/x);
   assertEquals(-Infinity, 1/y);
@@ skipping 180 matching lines @@
 
 function TestNonConfigurableProperties(constructor) {
   var arr = new constructor([100])
   assertFalse(Object.getOwnPropertyDescriptor(arr,"0").configurable)
   assertFalse(delete arr[0])
 }
 
 for(i = 0; i < typedArrayConstructors.length; i++) {
   TestNonConfigurableProperties(typedArrayConstructors[i]);
 }