Extract PHP support into an extension (#9966)

This PR extracts PHP support into an extension and removes the built-in
PHP support from Zed.

There's a small workaround necessary in order for us to provide the
`language_ids` on the `LspAdapter` that are needed for the language
server to run properly. Eventually we'll want to build this into the
extension API, but for now we're just hard-coding it on the host side.

Release Notes:

- Removed built-in support for PHP, in favor of making it available as
an extension. The PHP extension will be suggested for download when you
open a `.php` file.

crates/languages/src/lib.rs

@@ -26,7 +26,6 @@ mod json;
 mod lua;
 mod nu;
 mod ocaml;
-mod php;
 mod python;
 mod ruby;
 mod rust;
@@ -90,7 +89,6 @@ pub fn init(
             "ocaml_interface",
             tree_sitter_ocaml::language_ocaml_interface(),
         ),
-        ("php", tree_sitter_php::language_php()),
         ("proto", tree_sitter_proto::language()),
         ("python", tree_sitter_python::language()),
         ("racket", tree_sitter_racket::language()),
@@ -309,13 +307,6 @@ pub fn init(
         "yaml",
         vec![Arc::new(yaml::YamlLspAdapter::new(node_runtime.clone()))]
     );
-    language!(
-        "php",
-        vec![
-            Arc::new(php::IntelephenseLspAdapter::new(node_runtime.clone())),
-            Arc::new(tailwind::TailwindLspAdapter::new(node_runtime.clone())),
-        ]
-    );
     language!(
         "elm",
         vec![Arc::new(elm::ElmLspAdapter::new(node_runtime.clone()))]
@@ -342,6 +333,10 @@ pub fn init(
         "Astro".into(),
         Arc::new(tailwind::TailwindLspAdapter::new(node_runtime.clone())),
     );
+    languages.register_secondary_lsp_adapter(
+        "PHP".into(),
+        Arc::new(tailwind::TailwindLspAdapter::new(node_runtime.clone())),
+    );
     languages.register_secondary_lsp_adapter(
         "Svelte".into(),
         Arc::new(tailwind::TailwindLspAdapter::new(node_runtime.clone())),