tests/cases/conformance/interfaces/interfaceDeclarations/interfaceThatHidesBaseProperty2.ts(5,11): error TS2430: Interface 'Derived' incorrectly extends interface 'Base'.
  The types of 'x.a' are incompatible between these types.
    Type 'string' is not assignable to type 'number'.


==== tests/cases/conformance/interfaces/interfaceDeclarations/interfaceThatHidesBaseProperty2.ts (1 errors) ====
    interface Base {
        x: { a: number };
    }
    
    interface Derived extends Base { // error
              ~~~~~~~
!!! error TS2430: Interface 'Derived' incorrectly extends interface 'Base'.
!!! error TS2430:   The types of 'x.a' are incompatible between these types.
!!! error TS2430:     Type 'string' is not assignable to type 'number'.
        x: {
            a: string;
        };
    }