[parrot/parrot] 8f6520: Better bitfiddling with the intel 63 normalize bit

[GitHub]

  Branch: refs/heads/native_pbc2
  Home:   https://github.com/parrot/parrot
  Commit: 8f65204cfc2c4dd7fcdd5967d77e51a1901f829a
      https://github.com/parrot/parrot/commit/8f65204cfc2c4dd7fcdd5967d77e51a1901f829a
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2012-09-10 (Mon, 10 Sep 2012)

  Changed paths:
    M src/packfile/pf_items.c
    M t/native_pbc/number.t
    M t/native_pbc/number_8_10_le.pbc

  Log Message:
  -----------
  Better bitfiddling with the intel 63 normalize bit

cvt_num16_num10 clears now bit 63
cvt_num10_num16 tries to shift-copy the mantissa ignoring this bit

Test precision regex seems to be stable now.