==== tests/cases/compiler/derivedClassOverridesPrivateFunction1.ts (1 errors) ====
    class BaseClass {
        constructor() {
            this._init();
        }
        private _init() {
        }
    }
    class DerivedClass extends BaseClass {
          ~~~~~~~~~~~~
!!! derivedClassOverridesPrivateFunction1.ts(8,7): error TS2141: Class 'DerivedClass' cannot extend class 'BaseClass':
!!! 	Types 'DerivedClass' and 'BaseClass' define property '_init' as private.
        constructor() {
            super();
        }
        private _init() {
        }
    }
    new DerivedClass();