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authorbors <bors@rust-lang.org>2022-02-07 03:47:47 +0000
committerbors <bors@rust-lang.org>2022-02-07 03:47:47 +0000
commit926e7843eaa1794f15948395588eddedfb74a0d8 (patch)
tree2f4503e86885482803197033656e5e3695c6dc0d /compiler/rustc_serialize/src
parent25b21a1d160013b2d58c98d0337c75a721317160 (diff)
parent711e736262a5ef0c738a8bdfba55501bcfbe19a2 (diff)
downloadrust-926e7843eaa1794f15948395588eddedfb74a0d8.tar.gz
rust-926e7843eaa1794f15948395588eddedfb74a0d8.zip
Auto merge of #93643 - lcnr:fold-substs-perf, r=michaelwoerister
use `fold_list` in `try_super_fold_with` for `SubstsRef`

split out from #93505 as this by itself is responsible for most of the perf improvements there

r? `@michaelwoerister`
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