Includes support for bigint syntax so we can remove the acorn-bigint plugin. PR-URL: https://github.com/nodejs/node/pull/28649 Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>