Make XMLHttpRequest.response available.

client/dom/generated/src/frog/JavaScriptCallFrame.dart

 
 class JavaScriptCallFrameJs extends DOMTypeJs implements JavaScriptCallFrame native "*JavaScriptCallFrame" {
 
   static final int CATCH_SCOPE = 4;
 
   static final int CLOSURE_SCOPE = 3;
 
   static final int GLOBAL_SCOPE = 0;
 
   static final int LOCAL_SCOPE = 1;
 
   static final int WITH_SCOPE = 2;
 
   JavaScriptCallFrameJs get caller() native "return this.caller;";
 
   int get column() native "return this.column;";
 
   String get functionName() native "return this.functionName;";
 
   int get line() native "return this.line;";
 
   List get scopeChain() native "return this.scopeChain;";
 
   int get sourceID() native "return this.sourceID;";
 
+  Object get thisObject() native "return this.thisObject;";
+
   String get type() native "return this.type;";
 
   void evaluate(String script) native;
 
   int scopeType(int scopeIndex) native;
 }