File: typeParameterArgumentEquivalence4.types

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=== tests/cases/compiler/typeParameterArgumentEquivalence4.ts ===
function foo<T,U>() {
>foo : <T, U>() => void

    var x: (item) => U;
>x : (item: any) => U
>item : any

    var y: (item) => T;
>y : (item: any) => T
>item : any

    x = y;  // Should be an error
>x = y : (item: any) => T
>x : (item: any) => U
>y : (item: any) => T

    y = x;  // Shound be an error
>y = x : (item: any) => U
>y : (item: any) => T
>x : (item: any) => U
}