feat(ts_ls)!: rename `tsserver` to `ts_ls` #3232

`tsserver` cannot be used as an abbreviation for `typescript-language-server`, because there is [`tsserver`](https://github.com/microsoft/TypeScript/wiki/Standalone-Server-(tsserver)) already and it is completely different from `typescript-language-server`. This is misleading.

As the [README of `typescript-language-server`](https://github.com/typescript-language-server/typescript-language-server/blob/master/README.md) says, it's a wrapper of `tsserver`. This abuse has been around for so many time in lspconfig that people don't realize they are two different things, and are then confused by replacements of `typescript-language-server` like [typescript-tools.nvim](https://github.com/pmizio/typescript-tools.nvim) and [vtsls](https://github.com/yioneko/vtsls).

2 files changed, 86 insertions, 82 deletions

diff --git a/doc/server_configurations.md b/doc/server_configurations.md
index a75c0e00..7207858b 100644
--- a/doc/server_configurations.md
+++ b/doc/server_configurations.md
@@ -297,8 +297,8 @@ autogenerated from the Lua files. You can view this file in Nvim by running
 - [thriftls](#thriftls)
 - [tilt_ls](#tilt_ls)
 - [tinymist](#tinymist)
+- [ts_ls](#ts_ls)
 - [tsp_server](#tsp_server)
-- [tsserver](#tsserver)
 - [ttags](#ttags)
 - [turtle_ls](#turtle_ls)
 - [tvm_ffi_navigator](#tvm_ffi_navigator)
@@ -11691,7 +11691,7 @@ require'lspconfig'.superhtml.setup{}
 
 https://github.com/sveltejs/language-tools/tree/master/packages/language-server
 
-Note: assuming that [tsserver](#tsserver) is setup, full JavaScript/TypeScript support (find references, rename, etc of symbols in Svelte files when working in JS/TS files) requires per-project installation and configuration of [typescript-svelte-plugin](https://github.com/sveltejs/language-tools/tree/master/packages/typescript-plugin#usage).
+Note: assuming that [ts_ls](#ts_ls) is setup, full JavaScript/TypeScript support (find references, rename, etc of symbols in Svelte files when working in JS/TS files) requires per-project installation and configuration of [typescript-svelte-plugin](https://github.com/sveltejs/language-tools/tree/master/packages/typescript-plugin#usage).
 
 `svelte-language-server` can be installed via `npm`:
 ```sh
@@ -12527,44 +12527,12 @@ require'lspconfig'.tinymist.setup{}
   ```
 
 
-## tsp_server
-
-https://github.com/microsoft/typespec
-
-The language server for TypeSpec, a language for defining cloud service APIs and shapes.
-
-`tsp-server` can be installed together with the typespec compiler via `npm`:
-```sh
-npm install -g @typespec/compiler
-```
-
-
-
-**Snippet to enable the language server:**
-```lua
-require'lspconfig'.tsp_server.setup{}
-```
-
-
-**Default values:**
-  - `cmd` : 
-  ```lua
-  { "tsp-server", "--stdio" }
-  ```
-  - `filetypes` : 
-  ```lua
-  { "typespec" }
-  ```
-  - `root_dir` : 
-  ```lua
-  util.root_pattern("tspconfig.yaml", ".git")
-  ```
-
-
-## tsserver
+## ts_ls
 
 https://github.com/typescript-language-server/typescript-language-server
 
+`ts_ls`, aka `typescript-language-server`, is a Language Server Protocol implementation for TypeScript wrapping `tsserver`. Note that `ts_ls` is not `tsserver`.
+
 `typescript-language-server` depends on `typescript`. Both packages can be installed via `npm`:
 ```sh
 npm install -g typescript typescript-language-server
@@ -12598,7 +12566,7 @@ adds Vue support to this language server.
 *IMPORTANT*: It is crucial to ensure that `@vue/typescript-plugin` and `volar `are of identical versions.
 
 ```lua
-require'lspconfig'.tsserver.setup{
+require'lspconfig'.ts_ls.setup{
   init_options = {
     plugins = {
       {
@@ -12631,7 +12599,7 @@ require'lspconfig'.tsserver.setup{
 
 **Snippet to enable the language server:**
 ```lua
-require'lspconfig'.tsserver.setup{}
+require'lspconfig'.ts_ls.setup{}
 ```
 
 
@@ -12660,6 +12628,40 @@ require'lspconfig'.tsserver.setup{}
   ```
 
 
+## tsp_server
+
+https://github.com/microsoft/typespec
+
+The language server for TypeSpec, a language for defining cloud service APIs and shapes.
+
+`tsp-server` can be installed together with the typespec compiler via `npm`:
+```sh
+npm install -g @typespec/compiler
+```
+
+
+
+**Snippet to enable the language server:**
+```lua
+require'lspconfig'.tsp_server.setup{}
+```
+
+
+**Default values:**
+  - `cmd` : 
+  ```lua
+  { "tsp-server", "--stdio" }
+  ```
+  - `filetypes` : 
+  ```lua
+  { "typespec" }
+  ```
+  - `root_dir` : 
+  ```lua
+  util.root_pattern("tspconfig.yaml", ".git")
+  ```
+
+
 ## ttags
 
 https://github.com/npezza93/ttags
@@ -13538,8 +13540,8 @@ Volar by default supports Vue 3 projects. Vue 2 projects need
 [additional configuration](https://github.com/vuejs/language-tools/tree/master/packages/vscode-vue#usage).
 
 **TypeScript support**
-As of release 2.0.0, Volar no longer wraps around tsserver. For typescript
-support, `tsserver` needs to be configured with the `@vue/typescript-plugin`
+As of release 2.0.0, Volar no longer wraps around ts_ls. For typescript
+support, `ts_ls` needs to be configured with the `@vue/typescript-plugin`
 plugin.
 
 **Take Over Mode**
diff --git a/doc/server_configurations.txt b/doc/server_configurations.txt
index a75c0e00..7207858b 100644
--- a/doc/server_configurations.txt
+++ b/doc/server_configurations.txt
@@ -297,8 +297,8 @@ autogenerated from the Lua files. You can view this file in Nvim by running
 - [thriftls](#thriftls)
 - [tilt_ls](#tilt_ls)
 - [tinymist](#tinymist)
+- [ts_ls](#ts_ls)
 - [tsp_server](#tsp_server)
-- [tsserver](#tsserver)
 - [ttags](#ttags)
 - [turtle_ls](#turtle_ls)
 - [tvm_ffi_navigator](#tvm_ffi_navigator)
@@ -11691,7 +11691,7 @@ require'lspconfig'.superhtml.setup{}
 
 https://github.com/sveltejs/language-tools/tree/master/packages/language-server
 
-Note: assuming that [tsserver](#tsserver) is setup, full JavaScript/TypeScript support (find references, rename, etc of symbols in Svelte files when working in JS/TS files) requires per-project installation and configuration of [typescript-svelte-plugin](https://github.com/sveltejs/language-tools/tree/master/packages/typescript-plugin#usage).
+Note: assuming that [ts_ls](#ts_ls) is setup, full JavaScript/TypeScript support (find references, rename, etc of symbols in Svelte files when working in JS/TS files) requires per-project installation and configuration of [typescript-svelte-plugin](https://github.com/sveltejs/language-tools/tree/master/packages/typescript-plugin#usage).
 
 `svelte-language-server` can be installed via `npm`:
 ```sh
@@ -12527,44 +12527,12 @@ require'lspconfig'.tinymist.setup{}
   ```
 
 
-## tsp_server
-
-https://github.com/microsoft/typespec
-
-The language server for TypeSpec, a language for defining cloud service APIs and shapes.
-
-`tsp-server` can be installed together with the typespec compiler via `npm`:
-```sh
-npm install -g @typespec/compiler
-```
-
-
-
-**Snippet to enable the language server:**
-```lua
-require'lspconfig'.tsp_server.setup{}
-```
-
-
-**Default values:**
-  - `cmd` : 
-  ```lua
-  { "tsp-server", "--stdio" }
-  ```
-  - `filetypes` : 
-  ```lua
-  { "typespec" }
-  ```
-  - `root_dir` : 
-  ```lua
-  util.root_pattern("tspconfig.yaml", ".git")
-  ```
-
-
-## tsserver
+## ts_ls
 
 https://github.com/typescript-language-server/typescript-language-server
 
+`ts_ls`, aka `typescript-language-server`, is a Language Server Protocol implementation for TypeScript wrapping `tsserver`. Note that `ts_ls` is not `tsserver`.
+
 `typescript-language-server` depends on `typescript`. Both packages can be installed via `npm`:
 ```sh
 npm install -g typescript typescript-language-server
@@ -12598,7 +12566,7 @@ adds Vue support to this language server.
 *IMPORTANT*: It is crucial to ensure that `@vue/typescript-plugin` and `volar `are of identical versions.
 
 ```lua
-require'lspconfig'.tsserver.setup{
+require'lspconfig'.ts_ls.setup{
   init_options = {
     plugins = {
       {
@@ -12631,7 +12599,7 @@ require'lspconfig'.tsserver.setup{
 
 **Snippet to enable the language server:**
 ```lua
-require'lspconfig'.tsserver.setup{}
+require'lspconfig'.ts_ls.setup{}
 ```
 
 
@@ -12660,6 +12628,40 @@ require'lspconfig'.tsserver.setup{}
   ```
 
 
+## tsp_server
+
+https://github.com/microsoft/typespec
+
+The language server for TypeSpec, a language for defining cloud service APIs and shapes.
+
+`tsp-server` can be installed together with the typespec compiler via `npm`:
+```sh
+npm install -g @typespec/compiler
+```
+
+
+
+**Snippet to enable the language server:**
+```lua
+require'lspconfig'.tsp_server.setup{}
+```
+
+
+**Default values:**
+  - `cmd` : 
+  ```lua
+  { "tsp-server", "--stdio" }
+  ```
+  - `filetypes` : 
+  ```lua
+  { "typespec" }
+  ```
+  - `root_dir` : 
+  ```lua
+  util.root_pattern("tspconfig.yaml", ".git")
+  ```
+
+
 ## ttags
 
 https://github.com/npezza93/ttags
@@ -13538,8 +13540,8 @@ Volar by default supports Vue 3 projects. Vue 2 projects need
 [additional configuration](https://github.com/vuejs/language-tools/tree/master/packages/vscode-vue#usage).
 
 **TypeScript support**
-As of release 2.0.0, Volar no longer wraps around tsserver. For typescript
-support, `tsserver` needs to be configured with the `@vue/typescript-plugin`
+As of release 2.0.0, Volar no longer wraps around ts_ls. For typescript
+support, `ts_ls` needs to be configured with the `@vue/typescript-plugin`
 plugin.
 
 **Take Over Mode**