[perl #64004] Null PMC access while creating a subset of a role

[jn...@jnthn.net via RT]

On Thu Mar 19 12:45:21 2009, druoso wrote:
> <ruoso> rakudo: role Foo {}; role Bar {}; role SigType does Foo does Bar
> {}; subset Really of SigType where Foo & Bar; say Foo.does(Really); say
> Really.does(Foo);
> <p6eval> rakudo f8b6ae: OUTPUT«Null PMC access in getprop()␤current
> instr.: '!CREATE_SUBSET_TYPE' pc 17211 (src/builtins/guts.pir:213)␤»
> 

Subtypes based on user-defined classes and roles - which didn't always
work before now - should now be working reliably as of git .

> role R1 { }; subset SR1 of R1 where 1; say 1 ~~ SR1; say (1 but R1) ~~
SR1;
0
1

Added tests to S12-subset/subtypes.t.

Thanks,

Jonathan