patch 9.0.2164: Vim9: can use type a func arg/return value

Problem:  Vim9: can use type a func arg/return value
Solution: Check if using type as function argument or return value

closes: #13675

Signed-off-by: Ernie Rael <errael@raelity.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/vim9class.c b/src/vim9class.c
index 2c5e1df..b19f8c9 100644
--- a/src/vim9class.c
+++ b/src/vim9class.c
@@ -2342,7 +2342,7 @@
     }
 
     char_u *argp = name_end;
-    int ret = get_func_arguments(&argp, evalarg, 0, argvars, &argcount);
+    int ret = get_func_arguments(&argp, evalarg, 0, argvars, &argcount, FALSE);
     if (ret == FAIL)
 	return FAIL;