[IO] Made peeking on an unbuffered IO PMC promote the PMC to a buffered PMC. See RT #61290 (François Perrad).
[IO] Made peeking on an unbuffered IO PMC promote the PMC to a buffered PMC.
See RT #61290 (François Perrad).

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@34391 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

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