Check interaction of __WARN__, __DIE__ & lexical Warnings

TODO

__END__
# 8signal
BEGIN { $| = 1; $^WARN_HOOK = sub { print "WARN -- {@_[0]->message}" } }
BEGIN { $^DIE_HOOK  = sub { print "DIE -- {@_[0]->message}" } }
$a =+ 1 ;
use warnings qw(syntax) ;
$a =+ 1 ;
use warnings FATAL => qw(syntax) ;
$a =+ 1 ;
print "The End.\n" ;
EXPECT
WARN -- Reversed += operator at - line 6.
Reversed += operator at - line 8.
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