Document why we use real class for ivar table.
Fix signatures of instance/class super helpers.
Add doco for stack layout of super operations.
Document stack result after set/get ivar.
Fix up super forms in jvm6.
Use proper base for arg array building.
Fix stack layout for jvm6 set/get ivar.
Implemeng bignum in jvm6.
Fix arity, handling of sole-argument splat.
Don't push block if not given in super instructions.