fix(tolk/find-references): correctly find reference for methods

server/src/e2e/tolk/testcases/references/basic.test

@@ -458,3 +458,19 @@ fun name() {
 ------------------------------------------------------------------------
 References: [3:15]
 Scope: GlobalSearchScope{test.tolk}
+
+========================================================================
+Struct with methods
+========================================================================
+struct <caret>Storage {}
+
+fun Storage.load() {
+    return Storage.fromCell(contract.getData());
+}
+
+fun Storage.save(self) {
+    contract.setData(self.toCell());
+}
+------------------------------------------------------------------------
+References: [2:4, 3:11, 6:4]
+Scope: GlobalSearchScope{test.tolk}

server/src/e2e/tolk/testcases/rename/basic.test

@@ -527,3 +527,28 @@ fun test(): int {
     `match`();
 //! ^ match
 }
+
+========================================================================
+Rename struct name with methods
+========================================================================
+struct Storage {}
+//!    ^ MyStorage
+
+fun Storage.load() {
+    return Storage.fromCell(contract.getData());
+}
+
+fun Storage.save(self) {
+    contract.setData(self.toCell());
+}
+------------------------------------------------------------------------
+struct MyStorage {}
+//!    ^ MyStorage
+
+fun MyStorage.load() {
+    return MyStorage.fromCell(contract.getData());
+}
+
+fun MyStorage.save(self) {
+    contract.setData(self.toCell());
+}

server/src/languages/tolk/psi/Referent.ts

@@ -99,16 +99,19 @@ export class Referent extends BaseReferent<NamedNode> {
                 }
             }
 
+            const resolvedNode = Reference.multiResolve(new NamedNode(node, file))
+
             if (
                 node.type === "type_identifier" &&
                 parent.type === "method_receiver" &&
-                parent.childForFieldName("receiver_type")?.equals(node)
+                parent.childForFieldName("receiver_type")?.equals(node) &&
+                resolvedNode.length === 1 && // resolved only to itself
+                resolvedNode[0].node.equals(node)
             ) {
                 // T in `fun T.bar() {}`
                 return true
             }
 
-            const resolvedNode = Reference.multiResolve(new NamedNode(node, file))
             for (const target of resolvedNode) {
                 const identifier = target.nameIdentifier()
                 if (!identifier) return true