patch 8.2.3505: Vim9: build failure without the +eval feature

Problem:    Vim9: build failure without the +eval feature.
Solution:   Add #ifdef.
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index 78a87e7..ff91517 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -3724,9 +3724,11 @@
 				// don't accept alphanumeric for separator
 	if (check_regexp_delim(*cmd) == FAIL)
 	    return;
+#ifdef FEAT_EVAL
 	if (in_vim9script() && check_global_and_subst(eap->cmd, eap->arg)
 								      == FAIL)
 	    return;
+#endif
 
 	/*
 	 * undocumented vi feature:
@@ -4902,8 +4904,10 @@
     cmd = eap->arg;
     which_pat = RE_LAST;	    // default: use last used regexp
 
+#ifdef FEAT_EVAL
     if (in_vim9script() && check_global_and_subst(eap->cmd, eap->arg) == FAIL)
 	return;
+#endif
 
     /*
      * undocumented vi feature: