Try to fix cross-script global scope

src/mirror-debugger.js

 // Copyright 2006-2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Handle id counters.
 var next_handle_ = 0;
 var next_transient_handle_ = -1;
 
 // Mirror cache.
 var mirror_cache_ = [];
@@ skipping 168 matching lines @@
 
 // Different attributes for a property.
 var PropertyAttribute = {};
 PropertyAttribute.None       = NONE;
 PropertyAttribute.ReadOnly   = READ_ONLY;
 PropertyAttribute.DontEnum   = DONT_ENUM;
 PropertyAttribute.DontDelete = DONT_DELETE;
 
 
 // A copy of the scope types from runtime.cc.
-var ScopeType = { Global: 0,
-                  Local: 1,
-                  With: 2,
-                  Closure: 3,
-                  Catch: 4,
-                  Block: 5 };
+var ScopeType = { Global: 0,         // named NativeScope internally
+                  GlobalLexical: 1,  // named GlobalScope internally
+                  Local: 2,
+                  With: 3,
+                  Closure: 4,
+                  Catch: 5,
+                  Block: 6 };
 
 
 // Mirror hierarchy:
 //   - Mirror
 //     - ValueMirror
 //       - UndefinedMirror
 //       - NullMirror
 //       - NumberMirror
 //       - StringMirror
 //       - SymbolMirror
@@ skipping 2573 matching lines @@
   }
   if (!NUMBER_IS_FINITE(value)) {
     if (value > 0) {
       return 'Infinity';
     } else {
       return '-Infinity';
     }
   }
   return value;
 }