This makes it possible to restore the working directory of :terminal
buffers when reading those buffers from a session file.
Fixes#11288
Co-authored-by: Justin M. Keyes <justinkz@gmail.com>
Use unique filenames to avoid test conflicts.
Use read_file() instead of io.popen(), to ensures the file is closed.
Use helpers.rmdir(), it is far more robust than lfs.
closes#7911
The ':tcd' command is the first tab-specific command written to the file
and it is wrapped inside an 'if has('nvim')' block to keep the session
file compatible with Vim.
Closes#6678
