[perl #107348] [BUG] Can't call a sub with a True literal parameter in Rakudo

[Carl Mäsak]

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<masak> nom: sub foo(True) { say "OH HAI" }; foo(False)
<p6eval> nom 2b6f86: OUTPUT«Nominal type check failed for parameter
'';  expected Bool but got Bool instead␤  in sub foo [...]
<masak> o.O
* masak submits rakudobug

(1) This should conceivably work.
(2) The error message is mind-boggling.