Fix viper undo breakage from undo-boundary changes

* lisp/simple.el (undo-auto-disable-boundaries): New variable
* lisp/emulation/viper-init.el (viper-undo-in-complex-command,
  viper-undo-needs-adjustment): Rename
  variable to reflect new purpose,
  (viper-buffer-undo-list-mark): Remove
* lisp/emulation/viper-cmd.el (viper-set-complex-command-for-undo):
  Add undo using `undo-boundary', disable default undo-boundary
  addition.
* lisp/emulation/viper-cmd.el
  (viper-complete-complex-command-for-undo,viper-adjust-undo):
  Change function name, remove old undo list manipulation.
* lisp/emulation/viper-cmd.el (viper-undo,viper-repeat,
  viper-change-state-to-vi,viper-change-state):
  Update for function name change.

Addresses Bug #22295

1 files changed, 2 insertions, 7 deletions

diff --git a/lisp/emulation/viper-init.el b/lisp/emulation/viper-init.el
index 104245b7571..c1e76629477 100644
--- a/lisp/emulation/viper-init.el
+++ b/lisp/emulation/viper-init.el
@@ -370,13 +370,8 @@ Use `\\[viper-set-expert-level]' to change this.")
 ;; VI-style Undo
 
 ;; Used to 'undo' complex commands, such as replace and insert commands.
-(viper-deflocalvar viper-undo-needs-adjustment nil)
-(put 'viper-undo-needs-adjustment 'permanent-local t)
-
-;; A mark that Viper puts on buffer-undo-list.  Marks the beginning of a
-;; complex command that must be undone atomically.  If inserted, it is
-;; erased by viper-change-state-to-vi and viper-repeat.
-(defconst viper-buffer-undo-list-mark 'viper)
+(viper-deflocalvar viper-undo-in-complex-command nil)
+(put 'viper-undo-in-complex-command 'permanent-local t)
 
 (defcustom viper-keep-point-on-undo nil
   "Non-nil means not to move point while undoing commands.