fn check_trait_method_formals(
methods: &[TraitMethod],
class_system: ClassSystem,
) -> Result<()>Expand description
Check the R formals of every trait method
(check_r_formals). Every
dispatching class system defaults an instance method’s receiver to x.
S3/S4 existing-generic overrides can select another receiver. S7
shortcuts and Env/R6 trait methods use the injected receiver
.mx_self, which cannot be spelled by a Rust parameter.