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=== tests/cases/compiler/nanEquality.ts ===
declare const x: number;
>x : number
if (x === NaN) {}
>x === NaN : boolean
>x : number
>NaN : number
if (NaN === x) {}
>NaN === x : boolean
>NaN : number
>x : number
if (x == NaN) {}
>x == NaN : boolean
>x : number
>NaN : number
if (NaN == x) {}
>NaN == x : boolean
>NaN : number
>x : number
if (x !== NaN) {}
>x !== NaN : boolean
>x : number
>NaN : number
if (NaN !== x) {}
>NaN !== x : boolean
>NaN : number
>x : number
if (x != NaN) {}
>x != NaN : boolean
>x : number
>NaN : number
if (NaN != x) {}
>NaN != x : boolean
>NaN : number
>x : number
if (x === ((NaN))) {}
>x === ((NaN)) : boolean
>x : number
>((NaN)) : number
>(NaN) : number
>NaN : number
if (((NaN)) === x) {}
>((NaN)) === x : boolean
>((NaN)) : number
>(NaN) : number
>NaN : number
>x : number
if (x !== ((NaN))) {}
>x !== ((NaN)) : boolean
>x : number
>((NaN)) : number
>(NaN) : number
>NaN : number
if (((NaN)) !== x) {}
>((NaN)) !== x : boolean
>((NaN)) : number
>(NaN) : number
>NaN : number
>x : number
if (NaN === NaN) {}
>NaN === NaN : boolean
>NaN : number
>NaN : number
if (NaN !== NaN) {}
>NaN !== NaN : boolean
>NaN : number
>NaN : number
if (NaN == NaN) {}
>NaN == NaN : boolean
>NaN : number
>NaN : number
if (NaN != NaN) {}
>NaN != NaN : boolean
>NaN : number
>NaN : number
// ...
declare let y: any;
>y : any
if (NaN === y[0][1]) {}
>NaN === y[0][1] : boolean
>NaN : number
>y[0][1] : any
>y[0] : any
>y : any
>0 : 0
>1 : 1
function t1(value: number, NaN: number) {
>t1 : (value: number, NaN: number) => boolean
>value : number
>NaN : number
return value === NaN; // ok
>value === NaN : boolean
>value : number
>NaN : number
}
function t2(value: number, NaN: number) {
>t2 : (value: number, NaN: number) => boolean
>value : number
>NaN : number
return NaN == value; // ok
>NaN == value : boolean
>NaN : number
>value : number
}
function t3(NaN: number) {
>t3 : (NaN: number) => boolean
>NaN : number
return NaN === NaN; // ok
>NaN === NaN : boolean
>NaN : number
>NaN : number
}
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