core running, variant 8 revived
corerun uptil FFI impl
basic running of Core works, TBD: library usage of primitives & FFI
CoreRun works with a singly implemented IO primitive
CoreRun can use IO primitives, library limited to minimal subset allowing some basic (file) io, not yet all implemented as prims
CoreRun GC mostly in place
CoreRun: switch to explicit repr for tail recursion
work on CoreRun using explicit stack, generalizing the implicit stack runner, thus allowing GC to access the stack as root
work on CoreRun explicit stack runner, just a commit before the weekend...
CoreRun expl stack debugging
CoreRun expl stack work
GC with expl stack works
API module placeholders