Surgery Plus Combination Chemotherapy and Radiation Therapy in Treating Patients With Cancer of the Urinary Tract

bladder cancer, transitional cell cancer of the renal pelvis and ureter, urethral cancer, stage ii bladder cancer, stage iii bladder cancer, stage iv bladder cancer, anterior urethral cancer, posterior urethral cancer, urethral cancer associated with invasive bladder cancer, metastatic transitional cell cancer of the renal pelvis and ureter, regional transitional cell cancer of the renal pelvis and ureter, interventional