== IMCC ==
 * enable GC while parsing
    * allows more extensive use of PMCs, which encourages more sharing with the rest of the Parrot ecosystem (eg: PackFile PMCs, PIRATE)
 * constant unfolding
    * unimplemented const-variants of ops should get unfolded to multiple 'set' ops followed by the non-const variant of the op
    * reduces demand for umpteen op variants (op-bloat)
 * consider salvaging optimizer components, possibly for a pbc_to_pbc transformation tool or an in-memory inplace optimizer
 * work on isolating IMCC into separately loadable module
 * work on simple low-level replacement (PASM2)

== Bytecode ==
 * make subs first class entities. this would match the rest of Parrot more closely and solve a lot of issues.
 * pbc constant cross-references (6model request)
 * document format

== PIRC ==
 * make it build/run