pkg go/types, func NewConst(token.Pos, *Package, string, Type, constant.Value) *Const
pkg go/types, func NewField(token.Pos, *Package, string, Type, bool) *Var
pkg go/types, func NewFunc(token.Pos, *Package, string, *Signature) *Func
pkg go/types, func NewInterface([]*Func, []*Named) *Interface
pkg go/types, func NewLabel(token.Pos, *Package, string) *Label
pkg go/types, func NewMap(Type, Type) *Map

- If a watch with the `progressNotify` option set is to be created, and the registry hasn't provided a `newFunc`, return an error. ([#120212](https://github.com/kubernetes/kubernetes/pull/120212), [@p0lyn0mial](https://github.com/p0lyn0mial)) [SIG API Machinery]