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013efaf139
std.crypto.random * cross platform, even freestanding * can't fail. on initialization for some systems requires calling os.getrandom(), in which case there are rare but theoretically possible errors. The code panics in these cases, however the application may choose to override the default seed function and then handle the failure another way. * thread-safe * supports the full Random interface * cryptographically secure * no syscall required to initialize on Linux (AT_RANDOM) * calls arc4random on systems that support it `std.crypto.randomBytes` is removed in favor of `std.crypto.random.bytes`. I moved some of the Random implementations into their own files in the interest of organization. stage2 no longer requires passing a RNG; instead it uses this API. Closes #6704