vim-patch:8.2.4242: put in Visual mode cannot be repeated

Problem:    Put in Visual mode cannot be repeated.
Solution:   Use "P" to put without yanking the deleted text into the unnamed
            register. (Shougo Matsushita, closes vim/vim#9591)
https://github.com/vim/vim/commit/fb55207ed17918c8a2a6cadf5ad9d5fcf686a7ab

Cherry-pick get_y_previous() and set_y_previous() from patch 8.1.1736.
Nvim has removed y_current, so code related to it is N/A.

1 files changed, 12 insertions, 4 deletions

diff --git a/src/nvim/ops.c b/src/nvim/ops.c
index b8b639265c..f8ab6b2556 100644
--- a/src/nvim/ops.c
+++ b/src/nvim/ops.c
@@ -135,10 +135,18 @@ static char opchars[][3] =
   { Ctrl_X, NUL, OPF_CHANGE },           // OP_NR_SUB
 };
 
-/*
- * Translate a command name into an operator type.
- * Must only be called with a valid operator name!
- */
+yankreg_T *get_y_previous(void)
+{
+  return y_previous;
+}
+
+void set_y_previous(yankreg_T *yreg)
+{
+  y_previous = yreg;
+}
+
+/// Translate a command name into an operator type.
+/// Must only be called with a valid operator name!
 int get_op_type(int char1, int char2)
 {
   int i;