=== tests/cases/compiler/genericArgumentCallSigAssignmentCompat.ts ===
module Underscore {
>Underscore : unknown

    export interface Iterator<T, U> {
>Iterator : Iterator<T, U>
>T : T
>U : U

        (value: T, index: any, list: any): U;
>value : T
>T : T
>index : any
>list : any
>U : U
    }
 
    export interface Static {
>Static : Static

        all<T>(list: T[], iterator?: Iterator<T, boolean>, context?: any): boolean;
>all : <T>(list: T[], iterator?: Iterator<T, boolean>, context?: any) => boolean
>T : T
>list : T[]
>T : T
>iterator : Iterator<T, boolean>
>Iterator : Iterator<T, U>
>T : T
>context : any

        identity<T>(value: T): T;
>identity : <T>(value: T) => T
>T : T
>value : T
>T : T
>T : T
    }
}
 
declare var _: Underscore.Static;
>_ : Underscore.Static
>Underscore : unknown
>Static : Underscore.Static
 
// No error, Call signatures of types '<T>(value: T) => T' and 'Underscore.Iterator<{}, boolean>' are compatible when instantiated with any.
// Ideally, we would not have a generic signature here, because it should be instantiated with {} during inferential typing
_.all([true, 1, null, 'yes'], _.identity);
>_.all([true, 1, null, 'yes'], _.identity) : boolean
>_.all : <T>(list: T[], iterator?: Underscore.Iterator<T, boolean>, context?: any) => boolean
>_ : Underscore.Static
>all : <T>(list: T[], iterator?: Underscore.Iterator<T, boolean>, context?: any) => boolean
>[true, 1, null, 'yes'] : (string | number | boolean)[]
>_.identity : <T>(value: T) => T
>_ : Underscore.Static
>identity : <T>(value: T) => T
 
// Ok, because fixing makes us infer boolean for T
_.all([true], _.identity);
>_.all([true], _.identity) : boolean
>_.all : <T>(list: T[], iterator?: Underscore.Iterator<T, boolean>, context?: any) => boolean
>_ : Underscore.Static
>all : <T>(list: T[], iterator?: Underscore.Iterator<T, boolean>, context?: any) => boolean
>[true] : boolean[]
>_.identity : <T>(value: T) => T
>_ : Underscore.Static
>identity : <T>(value: T) => T