Packfile PMCs cannot create a bytecode file from scratch

[Util]

PIR code needs to be able to use Packfile PMCs to create runnable bytecode files from scratch, without being based on any existing .pbc file on disk. This capability will allow several Parrot tools to be refactored to remove their duplicated knowledge of packfile internals.

[Util]

According to Bacek in TT#504 (comment 17), it is not Packfile PMC that needs enhancing to solve this:

    ...it's not Packfile's fault.
    We need a way to construct Sub in PIR.
    Almost all preparations of it are done.
    We just need to implement Sub.init_pmc
    which will accept Hash with field values
    and construct Sub without attaching to
    current Interp.

[bacek]

Sub.init_pmc was implemented in r41313 - r41316. I'm not closing this ticket because I lost my example how to create PBC from PIR...

-- Bacek

[bacek]

Example added in r41354. Closing ticket unless someone can provide counter-example :)