`get_captures_at_position` has been renamed to `get_captures_at_pos`: neovim/neovim#20331.
Fallback to `get_captures_at_position` in case `get_captures_at_pos` is `nil`.
* fix(context): `in_treesitter_capture`
`in_treesitter_capture` used to compare a node:type() with what should
be a capture, returning always a falsy value.
The example https://github.com/hrsh7th/nvim-cmp/wiki/Advanced-techniques#disabling-completion-in-certain-contexts-such-as-comments
did not work as expected, being in_treesitter_capture("comment") always
not true.
Now it works as expected.
* feat(context): `in...capture`, `in...group` table
`in_treesitter_capture` and `in_syntax_group` can take a list of string
as argument.
* refactor(context): in...capture use vim.treesitter
Use vim.treesitter.get_captures_at_cursor()
* fix(context): get_captures_at_cursor -> ..._at_pos
get_captures_at_cursor() sometimes fails. Do it explicitly with
get_captures_at_pos(buf, row, col)
* refactor(context): vim.fn -> vim.api
Get row and col using vim.api and not vim.fn in in_syntax_group, as done
in in_treesitter_capture
