t-ae

[stzn/the-swift-programming-language-jp] Issue opened: #336 identity Operator no

https://github.com/stzn/the-swift-programming-language-jp/blob/8491d98b859944cf26f987485c9d806ec07be35e/language-guide/structures-and-classes.md#%E6%81%92%E7%AD%89%E4%BD%9C%E7%94%A8%E7%B4%A0identity-operators