So, I was right about the Glaswegian then!
But, for everyone else, no-one in Scotland actually writes the way that Claran y is doing. It's just a daft form of texting. It ain't correct!
Yuill is a moderately common Scottish name.
But then, so is Russell (we have our own Tartan, I frequently wear the clan pin as Head of Clan, and we have our own brand of single malt whisky made especially for us by Glenfiddich).