Symbol.toStringTag is failing in certain edge cases

[MylesBorins]

I'm still digging into exactly what is going on here... but the following code works in es6 environments

const TypedArrayPrototype = Object.getPrototypeOf(Uint8Array.prototype);
Object.getOwnPropertyDescriptor(TypedArrayPrototype, Symbol.toStringTag).get;

The same code fails when you attempt

delete global.Symbol;
require( "core-js" );
const TypedArrayPrototype = Object.getPrototypeOf(Uint8Array.prototype);
Object.getOwnPropertyDescriptor(TypedArrayPrototype, Symbol.toStringTag).get;

This was discovered when smoke testing Node v6.13.0. Please let me know if any other information is helpful

[zloirock]

The problem not in Symbol.toStringTag. The most part of typed arrays polyfills polyfilled without support %TypedArrayPrototype%, it's not always possible. Anyway, at this moment I'm reworking typed arrays polyfills, so I'll try to fix this issue.

[zloirock]

Fixed in v3 branch.