Make more JS files beter match the coding standard.

test/mjsunit/simple-constructor.js

 // Copyright 2008 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 105 matching lines @@
   assertEquals("y", obj.y);
 }
 
 for (var i = 0; i < 10; i++) {
   testArgs(f5);
   testArgs(f6);
   testArgs(f7);
 }
 
 function g(){
-  this.x=1
+  this.x = 1;
 }
 
 o = new g();
 assertEquals(1, o.x);
 o = new g();
 assertEquals(1, o.x);
-g.prototype = {y:2}
+g.prototype = {y:2};
 o = new g();
 assertEquals(1, o.x);
 assertEquals(2, o.y);
 o = new g();
 assertEquals(1, o.x);
 assertEquals(2, o.y);
-