Merge pull request #3362 from daliusd/tsserver_hints

Show tsserver hints/suggestions in Ale.

doc/ale.txt

@@ -1708,6 +1708,15 @@ g:ale_lsp_show_message_severity               *g:ale_lsp_show_message_severity*
   `'disabled'`    - Doesn't display any information at all.
 
 
+g:ale_lsp_suggestions                                   *g:ale_lsp_suggestions*
+
+  Type: |Number|
+  Default: 1
+
+  This variable defines if suggestions must be collected from LSP or tsserver
+  and shown.
+
+
 g:ale_lsp_root                                                 *g:ale_lsp_root*
                                                                *b:ale_lsp_root*