func (p *Package) Func(name string) (f *Function) {
	f, _ = p.Members[name].(*Function)
	return
}
func (p *Package) Func(name string) (f *Function) {
	f, _ = p.Members[name].(*Function)
	return
}
// Func returns the package-level function of the specified name,
// or nil if not found.
//