Matthias Krüger 7ec00cd135
Rollup merge of #91529 - TennyZhuang:try_reserve_binary_heap, r=yaahc
add BinaryHeap::try_reserve and BinaryHeap::try_reserve_exact

`try_reserve` of many collections were stablized in https://github.com/rust-lang/rust/pull/87993 in 1.57.0. Add `try_reserve` for the rest collections such as `BinaryHeap` should be not controversial.
2021-12-14 10:21:02 +01:00
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