simple parser framework + lazy bool error

[Daniel919]

Hi, this code is working:
http://mitglied.lycos.de/daniel919/parser.d

But when I tried to further simplify it,
I encountered an error:
http://mitglied.lycos.de/daniel919/parser_lazy.d
It fails on compiling (dmd 0.178):
Internal error: toir.c 170

Tell me please what you think about the parser.
Bug report is necessary for the lazy bool error ?

Daniel