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Rollup merge of #47463 - bluss:fused-iterator, r=alexcrichton

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Stabilize FusedIterator

FusedIterator is a marker trait that promises that the implementing
iterator continues to return `None` from `.next()` once it has returned
`None` once (and/or `.next_back()`, if implemented).

The effects of FusedIterator are already widely available through
`.fuse()`, but with stable `FusedIterator`, stable Rust users can
implement this trait for their iterators when appropriate.

Closes #35602
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kennytm 2018-03-06 18:21:35 +08:00
commit 8e3493d459
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28 changed files with 109 additions and 116 deletions
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src/libstd/lib.rs
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@ -266,7 +266,6 @@
#![feature(float_from_str_radix)]
#![feature(fn_traits)]
#![feature(fnbox)]
#![feature(fused)]
#![feature(generic_param_attrs)]
#![feature(hashmap_hasher)]
#![feature(heap_api)]