// but are required for the CFGs.FuncLit API.
	for _, lit := range lits {
		li := funcLits[lit]
		if li.cfg == nil {
			li.cfg = cfg.New(lit.Body, c.callMayReturn)
			if !hasReachableReturn(li.cfg) {
				li.noReturn = true
			}
		}
	}

	// All CFGs are now built.
	c.pass = nil

	return c, nil
}

// di.cfg may be nil on return.