Method uses_special_param

cranelift/codegen/src/ir/extfunc.rs:66–68

Does this signature have a parameter whose `ArgumentPurpose` is `purpose`?

(&self, purpose: ArgumentPurpose)

    /// Does this signature have a parameter whose `ArgumentPurpose` is
    /// `purpose`?
    pub fn uses_special_param(&self, purpose: ArgumentPurpose) -> bool {
        self.special_param_index(purpose).is_some()
    }

    /// Does this signature have a return whose `ArgumentPurpose` is `purpose`?
    pub fn uses_special_return(&self, purpose: ArgumentPurpose) -> bool {