Confusing error when trying to find a `self` method in a FacetType.

[danakj]

Description of the bug:

When we try to call a method with self on a facet type, with the same syntax we would use to call a method without self:

interface I {
  let X:! type;
  fn I1() -> X;
  fn I2[self: Self]() -> X;
}

fn F(U:! I where .X = .Self, v: U) {
  U.(I.I1)();
  U.(I.I2)();
}

The problem is it needs a self value of type U. But instead we get this confusing error message:

<source>:9:3: error: cannot access member of interface `I` in type `I where .(I.X) = .Self` that does not implement that interface
  U.(I.I2)();
  ^~~~~~~~

[matiamariano6-cell]

Sinceramente no tengo idea de eso

[matiamariano6-cell]

Descripción del error:

Cuando intentamos llamar a un método con selfun tipo de faceta, con la misma sintaxis que usaríamos para llamar a un método sin self:

interface I {
let X:! type;
fn I1() -> X;
fn I2self: Self -> X;
}

fn F(U:! I where .X = .Self, v: U) {
U.(I.I1)();
U.(I.I2)();
}
El problema es que necesita un valor propio de tipo U . Pero en su lugar, recibimos este mensaje de error confuso:

:9:3: error: cannot access member of interface `I` in type `I where .(I.X) = .Self` that does not implement that interface U.(I.I2)(); ^~~~~~~~

Pasa que me hizo una esim entonces tiene mí número en su dispositivo