patch 9.0.2019: Vim9: no support for funcrefs

Problem:  Vim9: no support for funcrefs
Solution: Add support for object/class funcref members

closes: #11981 #12417 #12960 #12324 #13333

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
diff --git a/src/vim9.h b/src/vim9.h
index 7854869..6bfbd9e 100644
--- a/src/vim9.h
+++ b/src/vim9.h
@@ -383,6 +383,7 @@
     char_u	  *fre_func_name;	// function name for legacy function
     loopvarinfo_T fre_loopvar_info;	// info about variables inside loops
     class_T	  *fre_class;		// class for a method
+    int		  fre_object_method;	// class or object method
     int		  fre_method_idx;	// method index on "fre_class"
 } funcref_extra_T;