Clean up JavaScript files to better follow coding standard.

test/mjsunit/bugs/bug-618.js

 // Copyright 2010 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 24 matching lines @@
 
 // If a setter is added to the prototype chain of a simple constructor setting
 // one of the properties assigned in the constructor then this setter is
 // ignored when constructing new objects from the constructor.
 
 // This only happens if the setter is added _after_ an instance has been
 // created.
 
 assertEquals(23, new C().x);
 C.prototype.__defineSetter__('x', function(value) { this.y = 23; });
-assertEquals(void 0, new C().x));
+assertEquals(void 0, new C().x);