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//// [objectTypesIdentityWithComplexConstraints.ts]
interface A {
<T extends {
<S extends A>(x: T, y: S): void
}>(x: T, y: T): void
}
interface B {
<U extends B>(x: U, y: U): void
}
// ok, not considered identical because the steps of contextual signature instantiation create fresh type parameters
function foo(x: A);
function foo(x: B); // error after constraints above made illegal
function foo(x: any) { }
//// [objectTypesIdentityWithComplexConstraints.js]
function foo(x) { }
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