ES6 module code is always strict (see 10.2.1), and much passes sourceType: 'module' setting to acorn.
This leads to errors when the code is taking advantage of non-strict features:
$ much v8-earley-boyer.js
SyntaxError: Octal literal in strict mode (1076:5)
ES6 module code is always strict (see 10.2.1), and
muchpassessourceType: 'module'setting to acorn.This leads to errors when the code is taking advantage of non-strict features: