Problem:
Since e049c6e4c0, most statusline-like UI elements can combine
highlight attrs, except for sign/statuscolumn.
Solution:
Implement for sign/statuscolumn.
Before calling "attach" a screen object is just a dummy container for
(row, col) values whose purpose is to be sent as part of the "attach"
function call anyway.
Just create the screen in an attached state directly. Keep the complete
(row, col, options) config together. It is still completely valid to
later detach and re-attach as needed, including to another session.
Problem: Two placed signs in the same line are not combined. E.g. in the
terminal debugger a breakpoint and the PC cannot be both be
displayed.
Solution: Combine the sign column and line highlight attributes.
a2f6e42ded
Nvim already does this in decor_redraw_signs().
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Modifying a sign no longer updates already placed signs.
Solution: Loop over (newly-exposed) placed decorations when modifying a
sign definition. Update placed decor if it belongs to the sign
that is modified.
Specifically, functions that are run in the context of the test runner
are put in module `test/testutil.lua` while the functions that are run
in the context of the test session are put in
`test/functional/testnvim.lua`.
Closes https://github.com/neovim/neovim/issues/27004.
Hope this will make people using feed_command less likely: this hides bugs.
Already found at least two:
1. msgpackparse() will show internal error: hash_add() in case of duplicate
keys, though it will still work correctly. Currently silenced.
2. ttimeoutlen was spelled incorrectly, resulting in option not being set when
expected. Test was still functioning somehow though. Currently fixed.
It is otherwise impossible to determine which test failed sanitizer/valgrind
check. test/functional/helpers.lua module return was changed so that tests which
do not provide after_each function to get new check will automatically fail.
