fix: support :LspRestart without arguments

[toupeira]

Description

Problem:
After the refactoring in e4d1c8b for Neovim 0.11.2 this command now requires an argument.

Solution:
Restore the previous behaviour where :LspRestart defaults to restarting all active servers.

Context

• Follow-up to fix: restore :LspStart/LspStop behaviour without arguments #3890
• Fixes LspStart and LspRestart need an argument to run #3892

[toupeira]

@justinmk @haunt98 sorry I missed the LspRestart command in #3890 😀

I wasn't using this command so not 100% sure on the behaviour, but if I'm reading the old code correctly it restarted all active servers, not just those attached to the current buffer:

• nvim-lspconfig/plugin/lspconfig.lua

  Line 196 in a182334

  for _, client in ipairs(get_clients_from_cmd_args(info.args)) do

• nvim-lspconfig/lua/lspconfig/util.lua

  Line 380 in a182334

  function M.get_managed_clients()

Is that correct?

[haunt98]

Hi @toupeira , my neovim config only has golsp (lsp for go) so my usecase for LspRestart is only restart golsp quickly.

[justinmk]

but if I'm reading the old code correctly it restarted all active servers, not just those attached to the current buffer:

I guess so. If people want granularity they can pass the config name.