[pct]: * Add capability for blocks to set default 'scope' values for   symbols, removing the need for every PAST::Var node to have   a :scope attribute.  Now only those that differ from the default   need it.
[pct]:
* Add capability for blocks to set default 'scope' values for
  symbols, removing the need for every PAST::Var node to have
  a :scope attribute.  Now only those that differ from the default
  need it.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@26919 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

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