Merge "Remove unused key field from SdkMemberTypesRegistry"

type SdkMemberTypesRegistry struct {

	// The list of types sorted by property name.

	list []SdkMemberType

	// The key that uniquely identifies this registry instance.

	key OnceKey

}

func (r *SdkMemberTypesRegistry) copyAndAppend(memberType SdkMemberType) *SdkMemberTypesRegistry {

		return t1.SdkPropertyName() < t2.SdkPropertyName()

	})

	// Generate a key that identifies the slice of SdkMemberTypes by joining the property names

	// from all the SdkMemberType .

	var properties []string

	for _, t := range list {

		properties = append(properties, t.SdkPropertyName())

	}

	key := NewOnceKey(strings.Join(properties, "|"))

	// Create a new registry so the pointer uniquely identifies the set of registered types.

	return &SdkMemberTypesRegistry{

		list: list,

		key:  key,

	}

}