errorf("type id %d not defined", id)
	}
	m := deb.uint64()
	if m != 0 {
		errorf("expected zero; got %d", m)
	}
	deb.fieldValue(indent, id)
}

// InterfaceValue:
//
//	NilInterfaceValue | NonNilInterfaceValue
func (deb *debugger) interfaceValue(indent tab) {
	deb.dump("Start of interface value")
	if nameLen := deb.uint64(); nameLen == 0 {
		deb.nilInterfaceValue(indent)
	} else {

TypeDefinition:
	int(-typeId) encodingOfWireType
Value:
	SingletonValue | StructValue
SingletonValue:
	uint(0) FieldValue
FieldValue:
	builtinValue | ArrayValue | MapValue | SliceValue | StructValue | InterfaceValue
InterfaceValue:
	NilInterfaceValue | NonNilInterfaceValue
NilInterfaceValue:
	uint(0)
NonNilInterfaceValue:
	ConcreteTypeName TypeSequence InterfaceContents
ConcreteTypeName: