feat(kotlin): update class name identifier and add structure tests

Author: phodal

src/code-context/kotlin/KotlinProfile.ts

@@ -69,7 +69,7 @@ export class KotlinProfile implements LanguageProfile {
         )?
 
       (class_declaration
-        (type_identifier) @interface-name
+        (type_identifier) @class-name
         (class_body
           (property_declaration
             (binding_pattern_kind)?

src/code-context/kotlin/KotlinStructurerProvider.ts

@@ -91,7 +91,6 @@ export class KotlinStructurerProvider extends BaseStructurerProvider {
 						interfaceObj.methods = methods.slice();
 						codeFile.classes.push({ ...interfaceObj });
 
-						// 重置字段和方法
 						methods.length = 0;
 						fields.length = 0;
 					}

src/test/language/kotlin/KotlinStructure.test.ts

@@ -0,0 +1,29 @@
+import { TestLanguageServiceProvider } from "src/test/TestLanguageService";
+import { KotlinStructurerProvider } from "../../../code-context/kotlin/KotlinStructurerProvider";
+
+const Parser = require('web-tree-sitter');
+
+describe('KotlinStructure', () => {
+	it('should convert a simple file to CodeFile', async () => {
+		const kotlinHelloWorld = `package com.example
+interface Shape {
+    val vertexCount: Int
+}
+
+class Rectangle(override val vertexCount: Int = 4) : Shape // Always has 4 vertices
+
+class Polygon : Shape {
+    override var vertexCount: Int = 0  // Can be set to any number later
+}`;
+
+		await Parser.init();
+		const parser = new Parser();
+		const languageService = new TestLanguageServiceProvider(parser);
+
+		const structurer = new KotlinStructurerProvider();
+		await structurer.init(languageService);
+
+		const codeFile = await structurer.parseFile(kotlinHelloWorld, '');
+		console.log(codeFile);
+	});
+});