[perl #64828] Rakudo chokes in the wrong way when the name of a type is used before it's declared

[Carl Mäsak]

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<masak> rakudo: say B; grammar B {}
<p6eval> rakudo bbd14b: OUTPUT«invoke() not implemented in class 'Capture
* masak submits rakudobug

Same symptom when we declare a class or role. When we declare a
package or a module, or declare a type B::C, we get the error
"invoke() not implemented in class 'NameSpace'" instead.