now we have a stack item for all statements [if...] [normal_fun] etc.
previously was only for [for ...] statements
changed: FunInfo<> has a pointer to the current stack item
changed: now we have a static number of stack items (default: 300)
so you can remember a pointer to a stack item and this pointer
is always valid
git-svn-id: svn://ttmath.org/publicrep/ezc/trunk@393 e52654a7-88a9-db11-a3e9-0013d4bc506e