[Perl/perl5] 19cdf1: Quiet the 'isa is experimental' warning from lib/B...

[Paul Evans]

  Branch: refs/heads/leonerd/isa
  Home:   https://github.com/Perl/perl5
  Commit: 19cdf1bb7510d29f6d6fc6342ecd02ef767e5ac4
      
https://github.com/Perl/perl5/commit/19cdf1bb7510d29f6d6fc6342ecd02ef767e5ac4
  Author: Paul "LeoNerd" Evans <leon...@leonerd.org.uk>
  Date:   2019-12-09 (Mon, 09 Dec 2019)

  Changed paths:
    M lib/B/Deparse-core.t

  Log Message:
  -----------
  Quiet the 'isa is experimental' warning from lib/B/Deparse-core.t