Make more JS files beter match the coding standard.

test/mjsunit/object-toprimitive.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 @@
 var s1 = String(o1);
 assertTrue(typeof n1 == "number");
 assertTrue(typeof s1 == "string");
 
 var trace = [];
 var valueOfValue = 42;
 var toStringValue = "foo";
 function traceValueOf () {
   trace.push("vo");
   return valueOfValue;
-};
+}
 function traceToString() {
   trace.push("ts");
   return toStringValue;
-};
+}
 var valueOfFunc = traceValueOf;
 var toStringFunc = traceToString;
 
 var ot = { get toString() { trace.push("gts");
                             return toStringFunc; },
            get valueOf() { trace.push("gvo");
                            return valueOfFunc; }
 };
 
 var nt = Number(ot);
@@ skipping 35 matching lines @@
 trace = [];
 assertThrows("String(ot)", TypeError);
 assertEquals(["gts", "gvo"], trace);
 
 toStringFunc = traceToString;
 toStringValue = "87";
 trace = [];
 var nt = Number(ot);
 assertEquals(87, nt);
 assertEquals(["gvo", "gts", "ts"], trace);