Debugger: move implementation to a separate folder.

test/mjsunit/debug-function-scopes.js

 // Copyright 2012 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 scope_object = scope_mirror.scopeObject().value();
 
   for (var name in scope_expectations) {
     var actual = scope_object[name];
     var expected = scope_expectations[name];
     assertEquals(expected, actual);
   }
 }
 
-// A copy of the scope types from mirror-debugger.js.
+// A copy of the scope types from debug/mirrors.js.
 var ScopeType = { Global: 0,
                   Local: 1,
                   With: 2,
                   Closure: 3,
                   Catch: 4,
                   Block: 5,
                   Script: 6};
 
 var f1 = (function F1(x) {
   function F2(y) {
@@ skipping 102 matching lines @@
   var mirror = Debug.MakeMirror(f);
   assertEquals(0, mirror.scopeCount());
 }
 
 CheckNoScopeVisible(Number);
 
 CheckNoScopeVisible(Function.toString);
 
 // This getter is known to be implemented as closure.
 CheckNoScopeVisible(new Error().__lookupGetter__("stack"));