Timothy Flynn 1d5b45f7d9 AK: Compute UTF-8 code point lengths using only leading bytes ...

We don't need to decode the entire code point to know its length. This
reduces the runtime of decoding a string containing 5 million instances
of U+10FFFF from over 4 seconds to 0.9 seconds.

2023-03-13 15:16:02 +00:00

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