Followup improvements to LSP (#11430)

Addressing things brought up in https://github.com/neovim/neovim/issues/11389 and beyond.

- Bugfix for empty dictionary serialization.
- Reduce markdown previews of code.
- Refactor method triggers to `lsp.buf.*` methods
- Switch to v:lua and get rid of vim interface.
- Get rid of filetype config in favor of something from https://github.com/neovim/nvim-lsp
- Switch error messages to something which doesn't require `ENTER` because if an LSP goes crazy, it'll block neovim.
- Rename `builtin_callbacks` to `default_callbacks`
- Resolve callback at time of calling using default_callbacks instead of at client creation
- Make hover/signatureHelp preview focusable so you can mess with it.
- Add vim.lsp.util.set_qflist and vim.lsp.util.set_loclist and vim.lsp.util.locations_to_items().
- Add apply_textedit and tests which enables a new class of features.
- Fix column offsets in character and bytes in vim.lsp.buf to be correct.

New methods:
- Add textDocument/references under vim.lsp.buf.references()
- Finish textDocument/rename
- Finish textDocument/rangeFormatting and textDocument/format

1 files changed, 0 insertions, 14 deletions

diff --git a/runtime/lua/vim/lsp/protocol.lua b/runtime/lua/vim/lsp/protocol.lua
index 1413a88ce2..ead90cc75a 100644
--- a/runtime/lua/vim/lsp/protocol.lua
+++ b/runtime/lua/vim/lsp/protocol.lua
@@ -10,7 +10,6 @@ end
 
 --[=[
 -- Useful for interfacing with:
--- https://github.com/microsoft/language-server-protocol/blob/gh-pages/_specifications/specification-3-14.md
 -- https://github.com/microsoft/language-server-protocol/raw/gh-pages/_specifications/specification-3-14.md
 function transform_schema_comments()
   nvim.command [[silent! '<,'>g/\/\*\*\|\*\/\|^$/d]]
@@ -681,19 +680,6 @@ function protocol.make_client_capabilities()
   }
 end
 
-function protocol.make_text_document_position_params()
-  local position = vim.api.nvim_win_get_cursor(0)
-  return {
-    textDocument = {
-      uri = vim.uri_from_bufnr()
-    };
-    position = {
-      line = position[1] - 1;
-      character = position[2];
-    }
-  }
-end
-
 --[=[
 export interface DocumentFilter {
   --A language id, like `typescript`.