Fix out of bounds access in unsafeCodePointAt0Fallback
#112
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`unsafeCodePointAt0Fallback` crashed when passed a string of length 1 due to always accessing index 1.
michaelficarra
approved these changes
Nov 10, 2018
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The precondition for
unsafeCodePointAt0is that the string length in code units is at least 1. But the fallback version only worked for length > 2, because it always accessed index 1.This was not caught by the test suite, because fallbacks are not used in node.js. I added a second test run to the test script that forces the use of fallbacks.