fix bug with get-token in modes that don't do tokenization

--HG--
branch : pmacs2

method/introspect.py

@@ -91,6 +91,10 @@ class DumpAggregateTokenData(Method):
 class GetToken(Method):
     '''View type and data of the "current" token'''
     def _execute(self, w, **vargs):
+        if w.mode.name in w.buffer.highlights:
+            w.set_error('No Token Data')
+            return
+
         token = w.get_token()
         if token is None:
             w.set_error('No Token')