Cleanup of `eat_while()` in lexer#77629

Merged

bors merged 1 commit intorust-lang:masterfrom

Julian-Wollersberger:recomputeRawStrError

Oct 10, 2020

Commits on Oct 9, 2020

Noticed a potential bug in `eat_while()`: it doesn't account for number of UTF8 bytes.
Julian Wollersberger
committed