| [< '("IDENT", "include"); '("QSTRING", fname) >] ->
true, (IncludeDep fname :: acc)
| [< '("IDENT", "include"); '("IDENT", "source"); '("QSTRING", fname) >] ->
| [< '("IDENT", "include"); '("QSTRING", fname) >] ->
true, (IncludeDep fname :: acc)
| [< '("IDENT", "include"); '("IDENT", "source"); '("QSTRING", fname) >] ->