tests/cases/compiler/indirectSelfReferenceGeneric.ts(1,7): error TS2506: 'a' is referenced directly or indirectly in its own base expression.
tests/cases/compiler/indirectSelfReferenceGeneric.ts(2,7): error TS2506: 'b' is referenced directly or indirectly in its own base expression.


==== tests/cases/compiler/indirectSelfReferenceGeneric.ts (2 errors) ====
    class a<T> extends b<T> { }
          ~
!!! error TS2506: 'a' is referenced directly or indirectly in its own base expression.
    class b<T> extends a<T> { }
          ~
!!! error TS2506: 'b' is referenced directly or indirectly in its own base expression.