This issue was solved with changeset r33291.
Eric, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.
parse.y (parser_data_type): inherit the core type in ripper so
that checks in core would work. [ruby-core:39591] [Bug #5331]
This issue was solved with changeset r33321.
Eric, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.