fixed ab6092ac from https://gitee.com/fupengfei001/third_party_jsframework/pulls/743

fupengfei6@huawei.com
Signed-off-by: Nbuzhifeng <buzhifeng2@huawei.com>

mock-generate/src/generate/generateMockJsFile.ts

@@ -211,7 +211,7 @@ export function generateImportDeclaration(importEntity: ImportElementEntity, sou
  * @returns
  */
  function checIsDefaultExportClass(importName: string): boolean {
-  const defaultExportClass = ['Context', 'BaseContext', 'ExtensionContext', 'ApplicationContext', 'ExtensionAbility'];
+  const defaultExportClass = ['Context', 'BaseContext', 'ExtensionContext', 'ApplicationContext', 'ExtensionAbility', 'Ability'];
   return defaultExportClass.includes(importName);
 }