=== tests/cases/compiler/bigIntWithTargetLessThanES2016.ts ===
BigInt(1) ** BigInt(1); // should error
>BigInt(1) ** BigInt(1) : bigint
>BigInt(1) : bigint
>BigInt : BigIntConstructor
>1 : 1
>BigInt(1) : bigint
>BigInt : BigIntConstructor
>1 : 1

let foo = BigInt(2);
>foo : bigint
>BigInt(2) : bigint
>BigInt : BigIntConstructor
>2 : 2

foo **= BigInt(2); // should error
>foo **= BigInt(2) : bigint
>foo : bigint
>BigInt(2) : bigint
>BigInt : BigIntConstructor
>2 : 2

