tests/cases/conformance/interfaces/declarationMerging/mergedInterfacesWithInheritedPrivates2.ts(17,7): error TS2420: Class 'D' incorrectly implements interface 'A'.
  Types have separate declarations of a private property 'w'.
tests/cases/conformance/interfaces/declarationMerging/mergedInterfacesWithInheritedPrivates2.ts(23,7): error TS2415: Class 'E' incorrectly extends base class 'C2'.
  Property 'w' is private in type 'C2' but not in type 'E'.
tests/cases/conformance/interfaces/declarationMerging/mergedInterfacesWithInheritedPrivates2.ts(23,7): error TS2420: Class 'E' incorrectly implements interface 'A'.
  Property 'x' is missing in type 'E'.
tests/cases/conformance/interfaces/declarationMerging/mergedInterfacesWithInheritedPrivates2.ts(30,11): error TS2341: Property 'x' is private and only accessible within class 'C'.
tests/cases/conformance/interfaces/declarationMerging/mergedInterfacesWithInheritedPrivates2.ts(31,12): error TS2341: Property 'w' is private and only accessible within class 'C2'.


==== tests/cases/conformance/interfaces/declarationMerging/mergedInterfacesWithInheritedPrivates2.ts (5 errors) ====
    class C {
        private x: number;
    }
    
    class C2 {
        private w: number;
    }
    
    interface A extends C {
        y: string;
    }
    
    interface A extends C2 {
        z: string;
    }
    
    class D extends C implements A { // error
          ~
!!! error TS2420: Class 'D' incorrectly implements interface 'A'.
!!! error TS2420:   Types have separate declarations of a private property 'w'.
        private w: number;
        y: string;
        z: string;
    }
    
    class E extends C2 implements A { // error
          ~
!!! error TS2415: Class 'E' incorrectly extends base class 'C2'.
!!! error TS2415:   Property 'w' is private in type 'C2' but not in type 'E'.
          ~
!!! error TS2420: Class 'E' incorrectly implements interface 'A'.
!!! error TS2420:   Property 'x' is missing in type 'E'.
        w: number;
        y: string;
        z: string;
    }
    
    var a: A;
    var r = a.x; // error
              ~
!!! error TS2341: Property 'x' is private and only accessible within class 'C'.
    var r2 = a.w; // error
               ~
!!! error TS2341: Property 'w' is private and only accessible within class 'C2'.