tests/cases/compiler/indexedAccessPrivateMemberOfGenericConstraint.ts(9,24): error TS4105: Private or protected member 'a' cannot be accessed on a type parameter.
tests/cases/compiler/indexedAccessPrivateMemberOfGenericConstraint.ts(9,32): error TS4105: Private or protected member 'a' cannot be accessed on a type parameter.
tests/cases/compiler/indexedAccessPrivateMemberOfGenericConstraint.ts(10,27): error TS4105: Private or protected member 'a' cannot be accessed on a type parameter.


==== tests/cases/compiler/indexedAccessPrivateMemberOfGenericConstraint.ts (3 errors) ====
    class A {
      private a: number;
    }
    
    class B {
      private a: string;
    }
    
    type X<T extends A> = [T["a"], (T | B)["a"]];
                           ~~~~~~
!!! error TS4105: Private or protected member 'a' cannot be accessed on a type parameter.
                                   ~~~~~~~~~~~~
!!! error TS4105: Private or protected member 'a' cannot be accessed on a type parameter.
    type Y<T extends A | B> = T["a"];
                              ~~~~~~
!!! error TS4105: Private or protected member 'a' cannot be accessed on a type parameter.
    type Z<T extends A & B> = T["a"];
    