symbolDeclarationEmit12.ts(9,13): error TS2300: Duplicate identifier '[Symbol.toPrimitive]'.
symbolDeclarationEmit12.ts(10,13): error TS2300: Duplicate identifier '[Symbol.toPrimitive]'.


==== symbolDeclarationEmit12.ts (2 errors) ====
    module M {
        interface I { }
        export class C {
            [Symbol.iterator]: I;
            [Symbol.toPrimitive](x: I) { }
            [Symbol.isConcatSpreadable](): I {
                return undefined
            }
            get [Symbol.toPrimitive]() { return undefined; }
                ~~~~~~~~~~~~~~~~~~~~
!!! error TS2300: Duplicate identifier '[Symbol.toPrimitive]'.
            set [Symbol.toPrimitive](x: I) { }
                ~~~~~~~~~~~~~~~~~~~~
!!! error TS2300: Duplicate identifier '[Symbol.toPrimitive]'.
        }
    }