add php support for semantic search

crates/zed/src/languages/php/config.toml

@@ -9,3 +9,4 @@ brackets = [
     { start = "(", end = ")", close = true, newline = true },
     { start = "\"", end = "\"", close = true, newline = false, not_in = ["string"] },
 ]
+collapsed_placeholder = "/* ... */"

crates/zed/src/languages/php/embedding.scm

@@ -0,0 +1,36 @@
+(
+    (comment)* @context
+    .
+    [
+        (function_definition
+            "function" @name
+            name: (_) @name
+            body: (_
+                "{" @keep
+                "}" @keep) @collapse
+            )
+
+        (trait_declaration
+            "trait" @name
+            name: (_) @name)
+
+        (method_declaration
+            "function" @name
+            name: (_) @name
+            body: (_
+                "{" @keep
+                "}" @keep) @collapse
+            )
+
+        (interface_declaration
+            "interface" @name
+            name: (_) @name
+            )
+
+        (enum_declaration
+            "enum" @name
+            name: (_) @name
+            )
+
+        ] @item
+    )

crates/zed/src/languages/php/outline.scm

@@ -8,8 +8,6 @@
     name: (_) @name
     ) @item
 
-
-
 (method_declaration
     "function" @context
     name: (_) @name
@@ -24,3 +22,8 @@
     "enum" @context
     name: (_) @name
     ) @item
+
+(trait_declaration
+    "trait" @context
+    name: (_) @name
+    ) @item