Merge pull request #7801 from ghalliday/issue14225

HPCC-14225 Add no_json to the IR case statement

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>

ecl/hql/hqlir.cpp

@@ -659,6 +659,7 @@ const char * getOperatorIRText(node_operator op)
     EXPAND_CASE(no,merge_pending);
     EXPAND_CASE(no,httpcall);
     EXPAND_CASE(no,getenv);
+    EXPAND_CASE(no,json);
     }
 
     return "<unknown>";