[webkit-dev] Switch to std::variant?

Hi, with C++17 adoption progressing, are there existing plans to switch over from WTF::Variant to stdlib-provided std::variant implementations? Some GCC-and-libstdc++ configurations would still require a fallback implementation, just like with std::optional. Bug #175583 started work on importing a C++17-compliant implementation, but currently seems stalled. https://bugs.webkit.org/show_bug.cgi?id=175583 Are there any other reservations or obstacles about adopting std::variant? Cheers, Zan