const go/types._UndeclaredName

3 uses

	go/types (current package)
		errorcodes.go#L674: 	_UndeclaredName
		typexpr.go#L42: 			check.errorf(e, _UndeclaredName, "undeclared name: %s", e.Name)
		typexpr.go#L47: 			check.errorf(e, _UndeclaredName, "undeclared name: %s (requires version go1.18 or later)", e.Name)