feat(lsp): support vim.lsp.ListOpts.loclist in location_handler()

runtime/doc/news.txt

@@ -266,6 +266,9 @@ The following new APIs and features were added.
     respective capability can be unset.
   • |vim.lsp.start()| accepts a "silent" option for suppressing messages
     if an LSP server failed to start.
+  • |vim.lsp.buf.definition()|, |vim.lsp.buf.declaration()|,
+    |vim.lsp.buf.type_definition()|, and |vim.lsp.buf.implementation()| now
+    support the `loclist` field of |vim.lsp.ListOpts|.
 
 • Treesitter
   • Bundled parsers and queries (highlight, folds) for Markdown, Python, and

runtime/lua/vim/lsp/handlers.lua

@@ -443,8 +443,13 @@ local function location_handler(_, result, ctx, config)
     util.jump_to_location(result[1], client.offset_encoding, config.reuse_win)
     return
   end
-  vim.fn.setqflist({}, ' ', { title = title, items = items })
-  vim.cmd('botright copen')
+  if config.loclist then
+    vim.fn.setloclist(0, {}, ' ', { title = title, items = items })
+    vim.cmd.lopen()
+  else
+    vim.fn.setqflist({}, ' ', { title = title, items = items })
+    vim.cmd('botright copen')
+  end
 end
 
 --- @see # https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_declaration