code: function ScriptMirror(script) {
    %_Call(Mirror, this, MirrorType.SCRIPT_TYPE);
    this.script_ = script;
    this.context_ = new ContextMirror(script.context_data);
    this.allocateHandle_();
  }
docs: Mirror object for script source.
  @param {Script} script The script object
  @constructor
  @extends Mirror