aliasOfGenericFunctionWithRestBehavedSameAsUnaliased.types

=== tests/cases/compiler/aliasOfGenericFunctionWithRestBehavedSameAsUnaliased.ts ===
// the type printback for every `test` below should be "y"

type ExtendedMapper<HandledInputT, OutputT, ArgsT extends any[]> = (name : string, mixed : HandledInputT, ...args : ArgsT) => OutputT;
>ExtendedMapper : ExtendedMapper<HandledInputT, OutputT, ArgsT>
>name : string
>mixed : HandledInputT
>args : ArgsT

type a = ExtendedMapper<any, any, [any]>;
>a : a

type b = ExtendedMapper<any, any, any[]>;
>b : b

type test = a extends b ? "y" : "n"
>test : "y"

let check: test = "y";
>check : "y"
>"y" : "y"


type ExtendedMapper1<HandledInputT, OutputT, ArgsT extends any[]> = (
>ExtendedMapper1 : ExtendedMapper1<HandledInputT, OutputT, ArgsT>

    (name : string, mixed : HandledInputT, ...args : ArgsT) => OutputT
>name : string
>mixed : HandledInputT
>args : ArgsT

);

type a1 = ExtendedMapper1<any, any, [any]>;
>a1 : a1

type b1 = ExtendedMapper1<any, any, any[]>;
>b1 : b1

type test1 = a1 extends b1 ? "y" : "n"
>test1 : "y"

let check1: test1 = "y";
>check1 : "y"
>"y" : "y"

type ExtendedMapper2<HandledInputT, OutputT, ArgsT extends any[]> = (
>ExtendedMapper2 : (name: string, mixed: HandledInputT, ...args: ArgsT) => OutputT

    {x:(name : string, mixed : HandledInputT, ...args : ArgsT) => OutputT}["x"]
>x : (name: string, mixed: HandledInputT, ...args: ArgsT) => OutputT
>name : string
>mixed : HandledInputT
>args : ArgsT

);

type a2 = ExtendedMapper2<any, any, [any]>;
>a2 : a2

type b2 = ExtendedMapper2<any, any, any[]>;
>b2 : b2

type test2 = a2 extends b2 ? "y" : "n"
>test2 : "y"

let check2: test2 = "y";
>check2 : "y"
>"y" : "y"

type a3 = (name: string, mixed: any, args_0: any) => any
>a3 : a3
>name : string
>mixed : any
>args_0 : any

type b3 = (name: string, mixed: any, ...args: any[]) => any
>b3 : b3
>name : string
>mixed : any
>args : any[]

type test3 = a3 extends b3 ? "y" : "n"
>test3 : "y"

let check3: test3 = "y";
>check3 : "y"
>"y" : "y"