[PMC] Modified MultiSub PMC to use PMC ATTRs for storage and not to subclass ResizablePMCArray.  This should allow us to add cache attribute as well as to enable better subclassing of this PMC.
[PMC] Modified MultiSub PMC to use PMC ATTRs for storage and not to subclass
ResizablePMCArray.  This should allow us to add cache attribute as well as to
enable better subclassing of this PMC.

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@34063 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot