[perl #73434] [BUG] An empty hash boolifies to a true value in Rakudo

[Carl Mäsak]

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<moritz_> rakudo: say ?{}
<p6eval> rakudo df743f: OUTPUT«1␤»
* moritz_ calls BUG
* moritz_ hilights masak
* masak submits rakudobug

It seems to be because Hash.Bool isn't implemented.