use v6;
say $!.why-does-this-print-Nil-instead-of-reporting-an-error;
# my $var = $!;
# say $var.no-such-method-error-good;

class Foo {
    has Int $.bar = 4;
    method baz() {
        return 2 * $!.bar; # this typo is not catched at compile time
    }
}
say Foo.new.baz();