=== tests/cases/compiler/destructuringWithGenericParameter.ts ===
class GenericClass<T> {
>GenericClass : GenericClass<T>

    payload: T;
>payload : T
}

var genericObject = new GenericClass<{ greeting: string }>();
>genericObject : GenericClass<{ greeting: string; }>
>new GenericClass<{ greeting: string }>() : GenericClass<{ greeting: string; }>
>GenericClass : typeof GenericClass
>greeting : string

function genericFunction<T>(object: GenericClass<T>, callback: (payload: T) => void) {
>genericFunction : <T>(object: GenericClass<T>, callback: (payload: T) => void) => void
>object : GenericClass<T>
>callback : (payload: T) => void
>payload : T

    callback(object.payload);
>callback(object.payload) : void
>callback : (payload: T) => void
>object.payload : T
>object : GenericClass<T>
>payload : T
}

genericFunction(genericObject, ({greeting}) => {
>genericFunction(genericObject, ({greeting}) => {    var s = greeting.toLocaleLowerCase();  // Greeting should be of type string}) : void
>genericFunction : <T>(object: GenericClass<T>, callback: (payload: T) => void) => void
>genericObject : GenericClass<{ greeting: string; }>
>({greeting}) => {    var s = greeting.toLocaleLowerCase();  // Greeting should be of type string} : ({ greeting }: { greeting: string; }) => void
>greeting : string

    var s = greeting.toLocaleLowerCase();  // Greeting should be of type string
>s : string
>greeting.toLocaleLowerCase() : string
>greeting.toLocaleLowerCase : (locales?: string | string[]) => string
>greeting : string
>toLocaleLowerCase : (locales?: string | string[]) => string

});