[perl #129855] [precomp] Missing serialize REPR function for REPR MVMContext with shaped arrays

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# New Ticket Created by  cygx 
# Please include the string:  [perl #129855]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=129855 >


    $ perl6 --version
    This is Rakudo version 2016.09-169-ge2cd7a3 built on MoarVM version 
2016.09-42-g
    5d45c56
    implementing Perl 6.c.

    $ cat Foo.pm
    BEGIN my @foo[42];

    $ perl6 -I. -MFoo -e ''
    ===SORRY!===
    Missing serialize REPR function for REPR MVMContext

There are other ways to trigger this particular error message, cf #127302.