https://github.com/tc39/proposal-private-fields-in-in Co-Authored-By: Nicolò Ribaudo <nicolo.ribaudo@gmail.com> Co-Authored-By: Huáng Jùnliàng <jlhwung@gmail.com>
Set whether we're in a pipeline in order to determine how to parse the hash. The error message changes as a result, since the `hash` never enters the block.