[stdlib] UnicodeDecoders: A *little* cacheing builds character #9087
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Speeds up the unicode scalar view around 20%. Now we are reasonably confident we don't need a more sophisticated API for decoding than the one we've got, and can move toward integration.
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@swift-ci Please smoke test and merge |
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Speeds up the unicode scalar view around 20%. Now we are reasonably confident
we don't need a more sophisticated API for decoding than the one we've got, and
can move toward integration.