rustc-ap-arena 662.0.0

Automatically published version of the package `arena` in the rust-lang/rust repository from commit 10c2316a6bf7cf9255f991e06e82ce692e6f84d5 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish
rustc-ap-arena-662.0.0 doesn't have any documentation.
The arena, a fast but limited type of allocator. Arenas are a type of allocator that destroy the objects within, all at once, once the arena itself is destroyed. They do not support deallocation of individual objects while the arena itself is still alive. The benefit of an arena is very fast allocation; just a pointer bump. This crate implements several kinds of arena.