Model each Dart library as its own ScriptState when devtools are enabled.

Source/bindings/dart/DartDebugHooks.js

 /*
  * Copyright (C) 2012 Google Inc. 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
@@ skipping 126 matching lines @@
         return this._scopes.length;
     },
 
     scope: function(index)
     {
         return this._scopes[index];
     },
 
     evaluate: function(expression, disableBreak)
     {
-        // FIXME: Dart VM doesn't currently support evaluations. Use
-        // JavaScript eval and 'with' statement to emulate evaluation on Dart
-        // call frame.
-
-        // FIXME: dartbug.com/10434 find a less fragile way to determine whether
-        // we need to strip off console API support added by InjectedScript.
-        var CONSOLE_API_SUPPORT_HEADER =
-            'with ((this && this.console && this.console._commandLineAPI) || {}) {\n';
-        if (expression.indexOf(CONSOLE_API_SUPPORT_HEADER) == 0) {
-            expression = expression.substr(expression.indexOf('\n') + 1);
-            expression = expression.substr(0, expression.lastIndexOf('\n'));
-        }
-
         var result = DartDebug.nativeCallbacks.invocationTrampoline(
             DartDebug.nativeCallbacks.evaluateInScope,
             [expression, this._localScope.receiver(), this._callFrame.functionProxy, this._callFrame.localVariables]);
         return { value: function() { return result; } };
     },
 
     get details_()
     {
         var receiver = this._localScope.receiver();
         return { receiver: function() { return receiver; } };
@@ skipping 230 matching lines @@
 
 Debug.clearBreakOnUncaughtException = function()
 {
     originals.clearBreakOnUncaughtException.apply(Debug);
     DartDebug.updateExceptionPauseInfo();
 }
 
 return DartDebug;
 
 })()