ProfJ is broken with the new expander?

[Vincent St-Amour]

When building ProfJ, I'm seeing the following error. I think it started when the new expanded landed, but I'm not 100% sure.

raco setup: error: during making for <pkgs>/profj/profj (ProfessorJ)
raco setup:   extra-pkgs/profj/profj/dynamic.rkt:6:47: ?: literal data is not allowed;
raco setup:    no #%datum syntax transformer is bound
raco setup:     in: #t
raco setup:     compiling: <pkgs>/profj/profj/dynamic.rkt

[Matthew Flatt]

ProfJ currently builds, at least, so whatever this was, it must have been fixed at some level.