* Upgrade to TypeScript 4.0 * Update tests * Fix changelog * Revert invalid label tests * Set loggerFn to false * Use TS 4.0 * Apply logical assginment test for TypeScript * Remove hack for NamedTupleMember * workaround for TypeScript 4.0 in src/language-js/utils.js Co-authored-by: Christopher J. Brody <chris.brody+brodybits@gmail.com>