Make more JS files beter match the coding standard.

test/mjsunit/debug-sourceslice.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 30 matching lines @@
 
 // Build source by putting all lines together
 var source = '';
 for (var i = 0; i < lines.length; i++) {
   source += lines[i];
 }
 eval(source);
 
 // Flags: --expose-debug-as debug
 // Get the Debug object exposed from the debug context global object.
-Debug = debug.Debug
+Debug = debug.Debug;
 
 // Get the script object from one of the functions in the source.
 var script = Debug.findScript(a);
 
 // Make sure that the source is as expected.
 assertEquals(source, script.source);
 assertEquals(source, script.sourceSlice().sourceText());
 
 // Try all possible line interval slices.
 for (var slice_size = 0; slice_size < lines.length; slice_size++) {
   for (var n = 0; n < lines.length - slice_size; n++) {
     var slice = script.sourceSlice(n, n + slice_size);
     assertEquals(n, slice.from_line);
     assertEquals(n + slice_size, slice.to_line);
 
     var text = slice.sourceText();
     var expected = '';
     for (var i = 0; i < slice_size; i++) {
       expected += lines[n + i];
     }
     assertEquals(expected, text);
   }
 }