Make more JS files beter match the coding standard.

test/mjsunit/arguments-enum.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
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 function countArguments() {
   var count = 0;
-  for (var prop in arguments)
+  for (var prop in arguments) {
     count++;
+  }
   return count;
 }
 
 function setArgumentCount() {
   arguments[10] = 5;
   arguments.x = 4;
   var count = 0;
-  for (var prop in arguments)
+  for (var prop in arguments) {
     count++;
+  }
   return count;
 }
 
 assertEquals(0, countArguments());
 assertEquals(1, countArguments(1));
 assertEquals(2, countArguments(1, 2));
 assertEquals(5, countArguments(1, 2, 3, 4, 5));
 
 assertEquals(2, setArgumentCount());
 assertEquals(3, setArgumentCount(1));
 assertEquals(4, setArgumentCount(1, 2));
 assertEquals(7, setArgumentCount(1, 2, 3, 4, 5));