[JIT] Switched JITted NCI functions to storage in ManagedStruct PMCs, which will free the memory allocated for the JIT function when the PMC gets destroyed.
[JIT] Switched JITted NCI functions to storage in ManagedStruct PMCs, which
will free the memory allocated for the JIT function when the PMC gets
destroyed.

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@32732 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

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