code: boolean areMatchingExits(Node nodeThis, Node nodeThat) {
      return nodeThis.isEquivalentTo(nodeThat)
          && (!isExceptionPossible(nodeThis)
              || getExceptionHandler(nodeThis) == getExceptionHandler(nodeThat));
    }
docs: Check whether one exit can be replaced with another. Verify:
  1) They are identical expressions
  2) If an exception is possible that the statements, the original
  and the potential replacement are in the same exception handler.