fix(lsp): fix SPC e l key binding

autoload/SpaceVim/layers/checkers.vim

@@ -206,6 +206,7 @@ function! s:toggle_show_error(...) abort
     " if buf_server_ready return false, the language server loclist
     " should be cleared.
     if get(getloclist(0, {'title': 0}), 'title', '') ==# 'Language Server'
+          \ || get(getloclist(0, {'title': 0}), 'title', '') ==# 'Diagnostics'
       call setloclist(0, [], 'r')
     endif
     let llist = getloclist(0, {'size' : 1, 'winid' : 1})

autoload/SpaceVim/lsp.vim

@@ -66,7 +66,7 @@ if (has('nvim-0.5.0') && s:NVIM_VERSION.is_release_version()) || has('nvim-0.6.0
     lua vim.lsp.buf.remove_workspace_folder()
   endfunction
   function! SpaceVim#lsp#buf_server_ready() abort
-    return v:lua.vim.lsp.buf.server_ready()
+    return luaeval('require("spacevim.lsp").server_ready()')
   endfunction
   function! SpaceVim#lsp#diagnostic_set_loclist() abort
     lua require('spacevim.diagnostic').set_loclist()

lua/spacevim/lsp.lua

@@ -1,5 +1,9 @@
 local M = {}
 
+function M.server_ready()
+  return vim.b.lsp_server_ready
+end
+
 M.clients = {}
 -- store the clients for different filetype
 -- which can be called via vim.lsp.start_client()
@@ -12,6 +16,13 @@ end
 
 function M.setup(enabled_clients, override_client_cmds) -- {{{
   local nvim_lsp = require('lspconfig')
+  local augroup = vim.api.nvim_create_augroup('spacevim_lsp', { clear = true })
+  vim.api.nvim_create_autocmd('LspAttach', {
+    group = augroup,
+    callback = function(args)
+      vim.api.nvim_buf_set_var(args.buf, 'lsp_server_ready', true)
+    end,
+  })
 
   -- Use an on_attach function to only map the following keys
   -- after the language server attaches to the current buffer