==== tests/cases/compiler/interfaceWithMultipleDeclarations.ts (15 errors) ====
    interface I1<V> {
    }
    interface I1<S> { // Name mismatch
              ~~
!!! All declarations of an interface must have identical type parameters.
    }
    interface I1<T, U extends T> { // Length mismatch
              ~~
!!! All declarations of an interface must have identical type parameters.
                    ~~~~~~~~~~~
!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
    }
    interface I1<V extends string> { // constraint present
              ~~
!!! All declarations of an interface must have identical type parameters.
    }
    interface I1<V, X extends V> { // Length mismatch
              ~~
!!! All declarations of an interface must have identical type parameters.
                    ~~~~~~~~~~~
!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
    }
    interface I1 { // Length mismatch
              ~~
!!! All declarations of an interface must have identical type parameters.
    }
    
    interface I2<T extends string> {
    }
    interface I2<T extends () => string> { // constraint mismatch
              ~~
!!! All declarations of an interface must have identical type parameters.
    }
    interface I2<T> { // constraint absent
              ~~
!!! All declarations of an interface must have identical type parameters.
    }
    interface I2<U> { // name mismatch
              ~~
!!! All declarations of an interface must have identical type parameters.
    }
    interface I2<X, Y> { // length mismatch
              ~~
!!! All declarations of an interface must have identical type parameters.
    }
    interface I2 { // length mismatch
              ~~
!!! All declarations of an interface must have identical type parameters.
    }
    
    interface I3 {
    }
    interface I3<T> { // length mismatch
              ~~
!!! All declarations of an interface must have identical type parameters.
    }
    
    class Foo<T> {
    }
    interface I4<T extends Foo<T>> {
                 ~~~~~~~~~~~~~~~~
!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
    }
    interface I4<T extends Foo<T>> { // Should not be error
                 ~~~~~~~~~~~~~~~~
!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
    }