Upon the hearing, the court shall determine the regularity of all proceedings taken under this chapter in connection with the plan as originally submitted or as amended and the fairness and equity of the plan, and may enter an appropriate decree. Upon entry of any decree by the court approving a compromise or arrangement and any reorganization as a consequence of a compromise or arrangement, then the compromise or arrangement and any reorganization as a consequence of the compromise or arrangement shall be binding upon the company, on every other company issuing securities or acquiring property under the reorganization, and on all creditors and stockholders of the company, whether or not the creditors and stockholders are affected by the reorganization or have accepted it or have filed proofs of their claims or interests and whether or not their claims or interests have been scheduled or allowed or are allowable.