}

func nameOffFor(t *abi.Type, off aNameOff) abi.Name {
	return toRType(t).nameOff(off)
}

func typeOffFor(t *abi.Type, off aTypeOff) *abi.Type {
	return toRType(t).typeOff(off)
}

func (t *interfaceType) typeOff(off aTypeOff) *abi.Type {
	return toRType(&t.Type).typeOff(off)
}

func (t *interfaceType) common() *abi.Type {
	return &t.Type
}