patch 8.2.3324: Vim9: Cannot use :silent with :endwhile

Problem:    Vim9: Cannot use :silent with :endwhile.
Solution:   Allow for using the :silent modifier. (closes #8737)
diff --git a/src/ex_eval.c b/src/ex_eval.c
index 6bc7c18..207defa 100644
--- a/src/ex_eval.c
+++ b/src/ex_eval.c
@@ -1026,7 +1026,7 @@
 {
     cstack_T	*cstack = eap->cstack;
 
-    if (cmdmod_error())
+    if (cmdmod_error(FALSE))
 	return;
     did_endif = TRUE;
     if (cstack->cs_idx < 0
@@ -1355,7 +1355,7 @@
     int		csf;
     int		fl;
 
-    if (cmdmod_error())
+    if (cmdmod_error(TRUE))
 	return;
 
     if (eap->cmdidx == CMD_endwhile)
@@ -1593,7 +1593,7 @@
     int		skip;
     cstack_T	*cstack = eap->cstack;
 
-    if (cmdmod_error())
+    if (cmdmod_error(FALSE))
 	return;
 
     if (cstack->cs_idx == CSTACK_LEN - 1)
@@ -1674,7 +1674,7 @@
     cstack_T	*cstack = eap->cstack;
     char_u	*pat;
 
-    if (cmdmod_error())
+    if (cmdmod_error(FALSE))
 	return;
 
     if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
@@ -1839,7 +1839,7 @@
     int		pending = CSTP_NONE;
     cstack_T	*cstack = eap->cstack;
 
-    if (cmdmod_error())
+    if (cmdmod_error(FALSE))
 	return;
 
     if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
@@ -1971,7 +1971,7 @@
     void	*rettv = NULL;
     cstack_T	*cstack = eap->cstack;
 
-    if (cmdmod_error())
+    if (cmdmod_error(FALSE))
 	return;
 
     if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)