Merge changes I84a780d7,Ife894409,Icd1819fb,I01e0ed4b,I5c0c2c9f

* changes:
  pdl: Avoid unwrap when parsing arrays
  pdl: Propagate child errors from Packet::new
  pdl: Propagate parse errors to callers
  pdl: Use explicit type when converting enum value
  pdl: Make primite enums repr(u64) again