Make more JS files beter match the coding standard.

test/mjsunit/compiler/regress-1394.js

 // Copyright 2011 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 30 matching lines @@
       ret = 2;
       break;
     case 3:
       ret = 3;
       break;
     case 4:
       ret = 4;
       break;
   }
   return ret;
-};
+}
 
 for (var i = 0; i < 3; i++) assertEquals(i, f(i));
 
 %OptimizeFunctionOnNextCall(f);
 
 assertEquals(0, f(0));
 assertEquals(1, f(1));