// serializable.
	Run func(*Pass) (interface{}, error)

	// RunDespiteErrors allows the driver to invoke
	// the Run method of this analyzer even on a
	// package that contains parse or type errors.
	// The Pass.TypeErrors field may consequently be non-empty.
	RunDespiteErrors bool

	// Requires is a set of analyzers that must run successfully
	// before this one on a given package. This analyzer may inspect