patch 8.2.2985: Vim9: a compiled function cannot be debugged

Problem:    Vim9: a compiled function cannot be debugged.
Solution:   Add initial debugging support.
diff --git a/src/userfunc.c b/src/userfunc.c
index f610c02..56b7df3 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -4395,7 +4395,7 @@
 		    && ufunc->uf_def_status == UF_TO_BE_COMPILED
 		    && (ufunc->uf_flags & FC_DEAD) == 0)
 	    {
-		(void)compile_def_function(ufunc, FALSE, FALSE, NULL);
+		(void)compile_def_function(ufunc, FALSE, CT_NONE, NULL);
 
 		if (func_hashtab.ht_changed != changed)
 		{