If participant is found to be eligible to take part in this study, participant will be assigned to a combination dose level of the study drugs based on when participant joins this study. Up to 6 participants will be enrolled at each dose level. The first group of participants will receive the lowest dose level of LDE225. Each new group will receive a higher dose than the group before it, if no intolerable side effects were seen. All participants will receive the same dose level of everolimus. This will continue until the highest tolerable combination dose of LDE225 and everolimus is found. Up to 24 participants will be enrolled in this part of the study.