feat: Extend the server with the hover_range capability

crates/rust-analyzer/src/lsp_ext.rs

@@ -376,11 +376,18 @@ pub struct SnippetTextEdit {
 pub enum HoverRequest {}
 
 impl Request for HoverRequest {
-    type Params = lsp_types::HoverParams;
+    type Params = HoverParams;
     type Result = Option<Hover>;
     const METHOD: &'static str = "textDocument/hover";
 }
 
+#[derive(Deserialize, Serialize, Debug)]
+#[serde(rename_all = "camelCase")]
+pub struct HoverParams {
+    pub text_document: TextDocumentIdentifier,
+    pub range: Range,
+}
+
 #[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
 pub struct Hover {
     #[serde(flatten)]