==== tests/cases/compiler/genericAssignmentCompatWithInterfaces1.ts (4 errors) ====
    interface Comparable<T> {
       compareTo(other: T): number;
    }
    interface I<T> {
        x: Comparable<T>;
    }
    interface K<T> {
       x: A<T>;
    }
    class A<T> implements Comparable<T> { compareTo(other: T) { return 1; } }
    var z = { x: new A<number>() };
    var a1: I<string> = { x: new A<number>() };
        ~~
!!! Type '{ x: A<number>; }' is not assignable to type 'I<string>':
!!!   Types of property 'x' are incompatible:
!!!     Type 'A<number>' is not assignable to type 'Comparable<string>':
!!!       Types of property 'compareTo' are incompatible:
!!!         Type '(other: number) => number' is not assignable to type '(other: string) => number':
!!!           Types of parameters 'other' and 'other' are incompatible:
!!!             Type 'number' is not assignable to type 'string'.
    var a2: I<string> = function (): { x: A<number> } {
        ~~
!!! Type '{ x: A<number>; }' is not assignable to type 'I<string>':
!!!   Types of property 'x' are incompatible:
!!!     Type 'A<number>' is not assignable to type 'Comparable<string>':
!!!       Types of property 'compareTo' are incompatible:
!!!         Type '(other: number) => number' is not assignable to type '(other: string) => number':
!!!           Types of parameters 'other' and 'other' are incompatible:
!!!             Type 'number' is not assignable to type 'string'.
       var z = { x: new A<number>() }; return z;
    } ();
    var a3: I<string> = z;
        ~~
!!! Type '{ x: A<number>; }' is not assignable to type 'I<string>':
!!!   Types of property 'x' are incompatible:
!!!     Type 'A<number>' is not assignable to type 'Comparable<string>':
!!!       Types of property 'compareTo' are incompatible:
!!!         Type '(other: number) => number' is not assignable to type '(other: string) => number':
!!!           Types of parameters 'other' and 'other' are incompatible:
!!!             Type 'number' is not assignable to type 'string'.
    var a4: I<string> = <K<number>>z;
        ~~
!!! Type 'K<number>' is not assignable to type 'I<string>':
!!!   Types of property 'x' are incompatible:
!!!     Type 'A<number>' is not assignable to type 'Comparable<string>':
!!!       Types of property 'compareTo' are incompatible:
!!!         Type '(other: number) => number' is not assignable to type '(other: string) => number':
!!!           Types of parameters 'other' and 'other' are incompatible:
!!!             Type 'number' is not assignable to type 'string'.