5a866a772c
396: Fix the `panic` found whilst fuzzing r=matklad,me a=DJMcNab This occurred when a non-ascii character was used in an ascii escape, for example in the motivating example: `if'\xɿ`, which can be further simplified to `'\xɿ`. Co-authored-by: DJMcNab <36049421+djmcnab@users.noreply.github.com>