Inheritance breaks Optional

[Tenchi2xh]

In the following code, foo has an Optional[A] argument and does a check on it to see if is None or defined:

class A:
    pass

def foo(maybe_a: Optional[A]):
    if maybe_a:
        print("maybe_a is defined")

foo(A())

This works, and correctly prints "maybe_a is defined".

However, if class a class B is defined and inherits from A, the exact same code will break at compile time:

class A:
    pass

class B(A):
    pass

def foo(maybe_a: Optional[A]):
    if maybe_a:
        print("maybe_a is defined")

foo(A())

internal.codon:364:16-49: error: '__internal__' object has no method 'class_raw_rtti_ptr' with arguments ()
├─ optional.codon:25:20-53: error: during the realization of opt_ref_bool_rtti(what: Optional[class_ctr[...,...]], T: class_ctr[...,...])
├─ optional.codon:43:16-30: error: during the realization of __has__(self: Optional[A])
├─ test.py:8:5-54: error: during the realization of __bool__(self: Optional[A])
╰─ test.py:11:1-4: error: during the realization of foo(maybe_a: Optional[A])

This breaks also with other types of checks: maybe_a is not None and maybe_a != None