diff -r 4d222f46f8cc -r 2f6d8866ec8d stage3/visit_expression_type.hh
--- a/stage3/visit_expression_type.hh	Fri Apr 01 10:47:24 2011 +0100
+++ b/stage3/visit_expression_type.hh	Fri Apr 01 12:19:32 2011 +0100
@@ -69,8 +69,11 @@
     bool il_error;
     bool error_found;
 
+    /* the current data type of the data stored in the IL stack, i.e. the default variable */
     symbol_c *il_default_variable_type;
+    /* the current IL operand being analysed - its symbol and its data type */
     symbol_c *il_operand_type;
+    symbol_c *il_operand;
 
 
   public: