Add async#job#connect

[mattn]

Now I could implement tcp feature on vim-lsp with async.vim. I'll send another pull-request to enable this.

augroup vim_lsp_settings_godot
  au!
  LspRegisterServer {
      \ 'name': 'godot',
      \ 'tcp': {server_info->lsp_settings#get('godot', 'tcp', '127.0.0.1:6008')},
      \ 'root_uri':{server_info->lsp_settings#get('godot', 'root_uri', lsp_settings#root_uri('godot'))},
      \ 'initialization_options': lsp_settings#get('godot', 'initialization_options', v:null),
      \ 'allowlist': lsp_settings#get('godot', 'allowlist', ['gdscript3', 'gdscript']),
      \ 'blocklist': lsp_settings#get('godot', 'blocklist', []),
      \ 'config': lsp_settings#get('godot', 'config', lsp_settings#server_config('godot')),
      \ 'workspace_config': lsp_settings#get('godot', 'workspace_config', {}),
      \ 'semantic_highlight': lsp_settings#get('godot', 'semantic_highlight', {}),
      \ }
augroup END

prabirshrestha/vim-lsp#469
prabirshrestha/vim-lsp#928
mattn/vim-lsp-settings#338

[mattn]

I'll add test.

[prabirshrestha]

Looks good feel free to merge.

We can tackle neovim separately. It might be simple as just this.

function! s:on_data(id, data, event) abort
endfunction
call sockconnect('tcp', 'github.com:80', { 'on_data': function('s:on_data') })

[mattn]

Sorry, I'm not familier to neovim. Can I merge this without neovim support?

[prabirshrestha]

Yes. We can merge this without neovim support.

[mattn]

I'll merge this. Anyone, please add nvim support in later.