tests/cases/compiler/getAndSetNotIdenticalType2.ts(5,9): error TS2380: The return type of a 'get' accessor must be assignable to its 'set' accessor type
  Type 'T' is not assignable to type 'string'.
tests/cases/compiler/getAndSetNotIdenticalType2.ts(9,9): error TS2322: Type 'A<string>' is not assignable to type 'A<T>'.
  Type 'string' is not assignable to type 'T'.
    'T' could be instantiated with an arbitrary type which could be unrelated to 'string'.
tests/cases/compiler/getAndSetNotIdenticalType2.ts(15,1): error TS2322: Type 'A<unknown>' is not assignable to type 'A<string>'.
  Type 'unknown' is not assignable to type 'string'.


==== tests/cases/compiler/getAndSetNotIdenticalType2.ts (3 errors) ====
    class A<T> { foo: T; }
    
    class C<T> {
        data: A<T>;
        get x(): A<T> {
            ~
!!! error TS2380: The return type of a 'get' accessor must be assignable to its 'set' accessor type
!!! error TS2380:   Type 'T' is not assignable to type 'string'.
!!! related TS2208 tests/cases/compiler/getAndSetNotIdenticalType2.ts:3:9: This type parameter might need an `extends string` constraint.
            return this.data;
        }
        set x(v: A<string>) {
            this.data = v;
            ~~~~~~~~~
!!! error TS2322: Type 'A<string>' is not assignable to type 'A<T>'.
!!! error TS2322:   Type 'string' is not assignable to type 'T'.
!!! error TS2322:     'T' could be instantiated with an arbitrary type which could be unrelated to 'string'.
        }
    }
    
    var x = new C();
    var r = x.x;
    x.x = r;
    ~~~
!!! error TS2322: Type 'A<unknown>' is not assignable to type 'A<string>'.
!!! error TS2322:   Type 'unknown' is not assignable to type 'string'.