Fetching uninitialzed values from arrays

[Simon Glover]

 Does Parrot make any guarantee about the value of an uninitialzed array
 element, or should I expect the value returned by:

  new P0, .FixedBooleanArray
  set P0, 1
  set I0, P0[0]

 to be garbage? (Just to be clear - I think it's fine if it is garbage,
 but I couldn't find an explicit statement of policy in the docs).

 Simon