[pct] The PAST spec says that using attribute scope should allow a child node to be supplied, which is used in place of self to supply the invocant, but it wasn't implemetned. This patch implements it.
[pct] The PAST spec says that using attribute scope should allow a child node to be supplied, which is used in place of self to supply the invocant, but it wasn't implemetned. This patch implements it.

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@30086 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

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