Small feature request: test.name property

We're using nodeunit to drive a series of performance tests. Each test logs its results and its expected results. Currently we just manually copy the name of each test in the logging code. It would be cleaner if we had programatic access to the name of each test, perhaps through a test.name property. Thank you.

未提及檔案或測試路徑。首先定位 nodeunit 的測試執行程式碼，以及它如何表示個別測試；定義一項最小變更，讓每個測試的名稱能夠被其記錄程式碼取得，然後透過現有的效能測試使用案例驗證該屬性。

由索引模型根據 Issue 內容生成。