=== tests/cases/conformance/es6/Symbols/symbolProperty23.ts ===
interface I {
>I : I

    [Symbol.toPrimitive]: () => boolean;
>Symbol.toPrimitive : symbol
>Symbol : SymbolConstructor
>toPrimitive : symbol
}

class C implements I {
>C : C
>I : I

    [Symbol.toPrimitive]() {
>Symbol.toPrimitive : symbol
>Symbol : SymbolConstructor
>toPrimitive : symbol

        return true;
>true : boolean
    }
}