I tagged this a few days ago, but forgot to announce, so here goes:
The new parser is activated as soon as the
FancyDiagnostics package is loaded,
no further steps necessary. Coverage of syntax errors is not as comprehensive as the base julia parser right now, but should improve as CSTParser gets better. Let me know if you run into any trouble.
I’d also like to acknowledge the Sloan foundation for funding part of this work.