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=== tests/cases/compiler/implicitAnyDeclareFunctionWithoutFormalType.ts ===
// these should be errors
function foo(x) { };
>foo : (x: any) => void
>x : any
function bar(x: number, y) { }; // error at "y"; no error at "x"
>bar : (x: number, y: any) => void
>x : number
>y : any
function func2(a, b, c) { }; // error at "a,b,c"
>func2 : (a: any, b: any, c: any) => void
>a : any
>b : any
>c : any
function func3(...args) { }; // error at "args"
>func3 : (...args: any[]) => void
>args : any[]
function func4(z= null, w= undefined) { }; // error at "z,w"
>func4 : (z?: any, w?: any) => void
>z : any
>null : null
>w : any
>undefined : undefined
// these shouldn't be errors
function noError1(x= 3, y= 2) { };
>noError1 : (x?: number, y?: number) => void
>x : number
>3 : 3
>y : number
>2 : 2
function noError2(x: number, y: string) { };
>noError2 : (x: number, y: string) => void
>x : number
>y : string
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