Make more JS files beter match the coding standard.

test/mjsunit/regress/regress-386.js

 // Copyright 2009 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 23 matching lines @@
 // Adding i in the second call to the constructor creates a real property,
 // and simultaneously converts the object from fast case to slow case
 // and changes i from a map transition to a real property.  There was
 // a flaw in the code that handled this combination of events.
 
 function A() {
  for (var i = 0; i < 13; i++) {
    this['a' + i] = i;
  }
  this.i = function(){};
-};
+}
 
 new A();
 new A();