[Patch] Implement std::experimental::variant

[Jonathan Wakely]

On 05/08/16 12:08 +0100, Jonathan Wakely wrote:
>On 04/08/16 23:22 -0700, Tim Shen wrote:
>>+  // Stores a void alternative, until void becomes a regular type.
>
>Personally I hope it won't become a regular type :-)
>Let's say "because void is not a regault type" here. That avoids the

Let's not say "regault"! I meant to type regular!