[perl #131301] [SEGV] segfault when nqp::nextfiledir'ing a closed dir handle

[via RT]

# New Ticket Created by  Zoffix Znet 
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Doesn't affect Perl 6-level code, but perhaps a SEGV is too bad and should be 
fixed?

    perl6 -Mnqp -e 'nqp::closedir(my $fh := nqp::opendir(".")); 
nqp::nextfiledir($fh)'
    Segmentation fault