-/// Top level pass manager (see PasManager.cpp) maintains active Pass Managers
+/// Top level pass manager (see PassManager.cpp) maintains active Pass Managers
/// using PMStack. Each Pass implements assignPassManager() to connect itself
/// with appropriate manager. assignPassManager() walks PMStack to find
/// suitable manager.
/// using PMStack. Each Pass implements assignPassManager() to connect itself
/// with appropriate manager. assignPassManager() walks PMStack to find
/// suitable manager.