patch 8.2.4846: termcodes test fails

Problem:    Termcodes test fails.
Solution:   use CTRL-SHIFT-V to insert an unsimplified key. (closes #10316)
diff --git a/src/edit.c b/src/edit.c
index 3790bfb..61c1694 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -1899,7 +1899,11 @@
      * vi-compatible (maybe there should be an option for it?) -- webb
      */
     if (gui.in_use)
+    {
 	++allow_keys;
+	if (noReduceKeys)
+	    ++no_reduce_keys;
+    }
 #endif
 #ifdef USE_ON_FLY_SCROLL
     dont_scroll = TRUE;		// disallow scrolling here
@@ -1992,7 +1996,11 @@
     --no_mapping;
 #ifdef FEAT_GUI
     if (gui.in_use)
+    {
 	--allow_keys;
+	if (noReduceKeys)
+	    --no_reduce_keys;
+    }
 #endif
     if (nc)
     {