feat(jobs): jobstart(…,{term=true}), deprecate termopen() #31343

Problem:
`termopen` has long been a superficial wrapper around `jobstart`, and
has no real purpose. Also, `vim.system` and `nvim_open_term` presumably
will replace all features of `jobstart` and `termopen`, so centralizing
the logic will help with that.

Solution:
- Introduce `eval/deprecated.c`, where all deprecated eval funcs will live.
- Introduce "term" flag of `jobstart`.
- Deprecate `termopen`.

1 files changed, 2 insertions, 1 deletions

diff --git a/test/old/testdir/runnvim.vim b/test/old/testdir/runnvim.vim
index 578614c8a1..f5945aeaee 100644
--- a/test/old/testdir/runnvim.vim
+++ b/test/old/testdir/runnvim.vim
@@ -8,6 +8,7 @@ function s:logger.on_exit(id, data, event)
 endfunction
 
 let s:logger.env = #{VIMRUNTIME: $VIMRUNTIME}
+let s:logger.term = v:true
 
 " Replace non-printable chars by special sequence, or "<%x>".
 let s:escaped_char = {"\n": '\n', "\r": '\r', "\t": '\t'}
@@ -25,7 +26,7 @@ function Main()
   set lines=25
   set columns=80
   enew
-  let job = termopen(args, s:logger)
+  let job = jobstart(args, s:logger)
   let results = jobwait([job], 5 * 60 * 1000)
   " TODO(ZyX-I): Get colors
   let screen = getline(1, '$')