tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithStringIndexer4.ts(11,7): error TS2415: Class 'B' incorrectly extends base class 'A'.
Index signatures are incompatible.
Type 'string' is not assignable to type 'Derived'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithStringIndexer4.ts(20,11): error TS2415: Class 'B' incorrectly extends base class 'A<Base>'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithStringIndexer4.ts(20,21): error TS2344: Type 'Base' does not satisfy the constraint 'Derived'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithStringIndexer4.ts(24,11): error TS2415: Class 'B3<T>' incorrectly extends base class 'A<T>'.