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=== tests/cases/conformance/es6/Symbols/symbolProperty21.ts ===
interface I<T, U> {
[Symbol.unscopables]: T;
>[Symbol.unscopables] : T
>Symbol.unscopables : unique symbol
>Symbol : SymbolConstructor
>unscopables : unique symbol
[Symbol.isConcatSpreadable]: U;
>[Symbol.isConcatSpreadable] : U
>Symbol.isConcatSpreadable : unique symbol
>Symbol : SymbolConstructor
>isConcatSpreadable : unique symbol
}
declare function foo<T, U>(p: I<T, U>): { t: T; u: U };
>foo : <T, U>(p: I<T, U>) => { t: T; u: U;}
>p : I<T, U>
>t : T
>u : U
foo({
>foo({ [Symbol.isConcatSpreadable]: "", [Symbol.toPrimitive]: 0, [Symbol.unscopables]: true}) : { t: boolean; u: string; }
>foo : <T, U>(p: I<T, U>) => { t: T; u: U; }
>{ [Symbol.isConcatSpreadable]: "", [Symbol.toPrimitive]: 0, [Symbol.unscopables]: true} : { [Symbol.isConcatSpreadable]: string; [Symbol.toPrimitive]: number; [Symbol.unscopables]: true; }
[Symbol.isConcatSpreadable]: "",
>[Symbol.isConcatSpreadable] : string
>Symbol.isConcatSpreadable : unique symbol
>Symbol : SymbolConstructor
>isConcatSpreadable : unique symbol
>"" : ""
[Symbol.toPrimitive]: 0,
>[Symbol.toPrimitive] : number
>Symbol.toPrimitive : unique symbol
>Symbol : SymbolConstructor
>toPrimitive : unique symbol
>0 : 0
[Symbol.unscopables]: true
>[Symbol.unscopables] : true
>Symbol.unscopables : unique symbol
>Symbol : SymbolConstructor
>unscopables : unique symbol
>true : true
});
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