patch 9.0.1470: deferred functions invoked in unexpected order

Problem:    Deferred functions invoked in unexpected order when using :qa and
            autocommands.
Solution:   Call deferred functions for the current funccal before using the
            stack. (closes #12278)
diff --git a/src/userfunc.c b/src/userfunc.c
index 0680767..fbde6ed 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -6144,12 +6144,12 @@
     void
 invoke_all_defer(void)
 {
+    for (funccall_T *fc = current_funccal; fc != NULL; fc = fc->fc_caller)
+	invoke_funccall_defer(fc);
+
     for (funccal_entry_T *fce = funccal_stack; fce != NULL; fce = fce->next)
 	for (funccall_T *fc = fce->top_funccal; fc != NULL; fc = fc->fc_caller)
 	    invoke_funccall_defer(fc);
-
-    for (funccall_T *fc = current_funccal; fc != NULL; fc = fc->fc_caller)
-	invoke_funccall_defer(fc);
 }
 
 /*