Added check for trailing whitespaces and corrected existing violations.

test/mjsunit/debug-stepin-call-function-stub.js

 // Copyright 2009 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 44 matching lines @@
     }
   } catch(e) {
     exception = e;
   }
 };
 
 // Add the debug event listener.
 Debug.setListener(listener);
 
 
-function g() { 
+function g() {
    return "s";  // expected line
 }
 
 function testFunction() {
   var f = g;
   var s = 1 +f(10);
 }
 
-function g2() { 
+function g2() {
    return "s2";  // expected line
 }
 
 function testFunction2() {
   var f = g2;
   var s = 1 +f(10, 20);
 }
 
 // Run three times. First time the function will be compiled lazily,
 // second time cached version will be used.
@@ skipping 21 matching lines @@
   // Set a break point and call to invoke the debug event listener.
   Debug.setBreakPoint(testFunction2, 2, 0);
   testFunction2();
   assertNull(exception);
   assertEquals(3, state);
 }
 
 
 // Get rid of the debug event listener.
 Debug.setListener(null);