[perl #112780] Bleadperl v5.15.6-409-gb659727 breaks MSCHWERN/Test-Simple-1.005000_005.tar.gz

This one is pretty severe for Test::More.  I had a very hard time
finding a way to share filehandles across threads that was backwards
compatible.  If this doesn't work in 5.16, I'm kinda sunk.

What I'm doing is pretty hacky, so there might be a way to fix it at my
end.  Here's the code and test in question for somebody who understands
threads to evaluate.
https://github.com/schwern/test-more/blob/Test-Builder1.5/lib/TB2/ThreadSafeFilehandleAccessor.pm
https://github.com/schwern/test-more/blob/Test-Builder1.5/t/Streamer/ThreadSafeFilehandleAccessor.t

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via perlbug:  queue: perl5 status: new
https://rt.perl.org:443/rt3/Ticket/Display.html?id=112780

• [perl #112780] Bleadperl v5.15.6-409-gb659727 breaks MSCHWERN/Test-Simple-1.005000_005.tar.gz by Father Chrysostomos via RT
• [perl #112780] Bleadperl v5.15.6-409-gb659727 breaks MSCHWERN/Test-Simple-1.005000_005.tar.gz by Michael G Schwern via RT
• [perl #112780] Bleadperl v5.15.6-409-gb659727 breaks MSCHWERN/Test-Simple-1.005000_005.tar.gz by Father Chrysostomos via RT
• Re: [perl #112780] Bleadperl v5.15.6-409-gb659727 breaksMSCHWERN/Test-Simple-1.005000_005.tar.gz by Ricardo Signes
• [perl #112780] Bleadperl v5.15.6-409-gb659727 breaks MSCHWERN/Test-Simple-1.005000_005.tar.gz by perlbug-followup