Created attachment 74 [details]
test case

when i try to compile my project, i got ICE with this message:

cc1d: ../../gcc-4.9.1/gcc/d/dfrontend/func.c:4048: virtual void
CtorDeclaration::semantic(Scope*): Assertion `tf && tf->ty == Tfunction'
failed.
(null):0: confused by earlier errors, bailing out


seems that it was caused by 'import' inside struct in piece.d. if i'll remove
that import, ICE disappears.

ICE will also disappear if i'll remove constructor in tree.d which causes
'undefined identifier' error.