==== tests/cases/compiler/recursiveBaseCheck2.ts (1 errors) ====
    declare module Box2D.Collision.Shapes {
        export class b2CircleShape extends b2Shape {
                     ~~~~~~~~~~~~~
!!! Type 'b2CircleShape' recursively references itself as a base type.
        }
        export class b2Shape extends Box2D.Collision.Shapes.b2CircleShape {
        }
    }
    declare module Box2D.Dynamics {
        export class b2ContactListener extends Box2D.Collision.Shapes.b2Shape {
        }
        export class b2FixtureDef extends Box2D.Dynamics.b2ContactListener {
        }
    }