From @masak

<masak> rakudo​: class A { method foo { my $a = 42; method bar { say $a
} } }; given A.new { .foo; .bar }
<p6eval> rakudo 86bf4c​: OUTPUT«42␤»
<masak> rakudo​: class A { method foo { my $a = 42; method bar { say $a
} } }; A.new.bar
<p6eval> rakudo 86bf4c​: OUTPUT«Null PMC access in type()␤ in 'A​::bar' [...]
* masak submits rakudobug
<masak> I suspected that might happen :P
<masak> at the point .bar is called, if .foo hasn't been called, $a
contains a Null PMC.
<masak> because the lexpad in .foo has never been visited, and thus is
not active.
<masak> this'll all be fixed when we have static lexpads.

From @moritz

Works now, and tested in t/spec/S12-methods/instance.t.

@moritz - Status changed from 'new' to 'resolved'