Rollup merge of #38131 - clarcharr:from_segments, r=alexcrichton
Rollup merge of #38131 - clarcharr:from_segments, r=alexcrichton

Add From<[u16; 8]> to Ipv6Addr

Not really sure that this requires an RFC, but I figured that I'd offer a pull request and see what people think. It seems like a reasonable addition.

GBGamer/rust,GBGamer/rust,aidancully/rust,graydon/rust,GBGamer/rust,graydon/rust,graydon/rust,aidancully/rust,GBGamer/rust,aidancully/rust,aidancully/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,graydon/rust,GBGamer/rust,GBGamer/rust,graydon/rust,graydon/rust