Nicholas Nethercote 0c2ebbd412 Rename PtrKey as Interned and improve it. ...

In particular, there's now more protection against incorrect usage,
because you can only create one via `Interned::new_unchecked`, which
makes it more obvious that you must be careful.

There are also some tests.

2022-02-15 15:50:29 +11:00

..

tests.rs

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