Add support for lua-language-server

doc/ale-lua.txt

@@ -27,6 +27,30 @@ g:ale_lua_lua_format_options                     *g:ale_lua_lua_format_options*
   This variable can be set to pass additional options to lua-format.
 
 
+===============================================================================
+lua-language-server                               *ale-lua-lua-language-server*
+                                                      *ale-lua-language-server*
+
+g:ale_lua_language_server_executable     *g:ale_lua_language_server_executable*
+                                         *b:ale_lua_language_server_executable*
+  Type: |String|
+  Default: `'lua-language-server'`
+
+  This variable can be changed to set the path to lua-language-server.
+
+  If you have compiled the language server yourself in `/some/path`, the path
+  will be `'/some/path/bin/lua-language-server'`.
+
+
+g:ale_lua_lua_language_server_config     *g:ale_lua_lua_language_server_config*
+                                         *b:ale_lua_lua_language_server_config*
+  Type: |Dictionary|
+  Default: `{}`
+
+  Dictionary containing configuration settings that will be passed to the
+  language server.
+
+
 ===============================================================================
 luac                                                             *ale-lua-luac*
 

doc/ale-supported-languages-and-tools.txt

@@ -341,6 +341,7 @@ Notes:
 * Lua
   * `cspell`
   * `lua-format`
+  * `lua-language-server`
   * `luac`
   * `luacheck`
   * `luafmt`

doc/ale.txt

@@ -3068,6 +3068,7 @@ documented in additional help files.
   lua.....................................|ale-lua-options|
     cspell................................|ale-lua-cspell|
     lua-format............................|ale-lua-lua-format|
+    lua-language-server...................|ale-lua-lua-language-server|
     luac..................................|ale-lua-luac|
     luacheck..............................|ale-lua-luacheck|
     luafmt................................|ale-lua-luafmt|