The [[GetOwnProperty]] algorithm for Tuple exotic objects has an early exit step for symbol keys, but the step returned false, which isn’t a possible [[GetOwnProperty]] return value. It should return undefined.
(TEO’s [[DefineOwnProperty]] never permits definition of such a property, so it’s known not to exist. The explicit early exit is not redundant, though, because the subsequent CanonicalNumericIndexString(P) only has defined behavior for string input.)
The [[GetOwnProperty]] algorithm for Tuple exotic objects has an early exit step for symbol keys, but the step returned false, which isn’t a possible [[GetOwnProperty]] return value. It should return undefined.
(TEO’s [[DefineOwnProperty]] never permits definition of such a property, so it’s known not to exist. The explicit early exit is not redundant, though, because the subsequent CanonicalNumericIndexString(P) only has defined behavior for string input.)