fix(lang#vim): fix lang#vim layer key bindings

autoload/SpaceVim/layers/lang/vim.vim

@@ -33,6 +33,15 @@
 "   SPC l f         open exception trace
 "   g d             jump to definition
 " <
+" >
+"   key binding     Description
+"   SPC l e         rename symbol
+"   SPC l d         show document
+"   K               show document
+" <
+"
+" If the lsp layer is enabled for vim script, the following key bindings can
+" be used:
 
 if exists('s:auto_generate_doc')
   finish
@@ -135,6 +144,15 @@ function! s:language_specified_mappings() abort
         \ . string(function('s:helpversion_cursor')) . ', [])',
         \ 'echo helpversion under cursor', 1)
   call SpaceVim#mapping#space#langSPC('nmap', ['l','f'], 'call exception#trace()', 'tracing exceptions', 1)
+  if SpaceVim#layers#lsp#check_server('vimls') || SpaceVim#layers#lsp#check_filetype('vim')
+    nnoremap <silent><buffer> K :call SpaceVim#lsp#show_doc()<CR>
+
+    call SpaceVim#mapping#space#langSPC('nnoremap', ['l', 'd'],
+          \ 'call SpaceVim#lsp#show_doc()', 'show_document', 1)
+    call SpaceVim#mapping#space#langSPC('nnoremap', ['l', 'e'],
+          \ 'call SpaceVim#lsp#rename()', 'rename symbol', 1)
+  endif
+
 endfunction
 
 function! s:eval_cursor() abort

autoload/SpaceVim/layers/treesitter.vim

@@ -19,4 +19,5 @@ endfunction
 
 function! SpaceVim#layers#treesitter#health() abort
   call SpaceVim#layers#treesitter#plugins()
+  return 1
 endfunction

autoload/SpaceVim/lsp.vim

@@ -24,9 +24,7 @@ if (has('nvim-0.5.0') && s:NVIM_VERSION.is_release_version()) || has('nvim-0.6.0
           \ )
   endfunction
   function! SpaceVim#lsp#show_doc() abort
-    lua require('lsp.plugin')
+    lua vim.lsp.buf.hover()
-          \ .client.request('textDocument/hover',
-          \ {}, require('spacevim.lsp').hover_callback)
   endfunction
   function! SpaceVim#lsp#go_to_def() abort
     lua vim.lsp.buf.definition()

doc/SpaceVim.txt

@@ -4257,6 +4257,16 @@ The following key bindings will be added when this layer is loaded:
   g d             jump to definition
 <
 
+>
+  key binding     Description
+  SPC l e         rename symbol
+  SPC l d         show document
+  K               show document
+<
+
+If the lsp layer is enabled for vim script, the following key bindings can be
+used:
+
 ==============================================================================
 LANG#VUE                                            *SpaceVim-layers-lang-vue*