[swift-evolution] Auto-convert for numbers when safe

[Chris Lattner]

> On Dec 7, 2015, at 1:26 AM, William Shipley via swift-evolution <swift-evolution at swift.org> wrote:
> 
>> Chris Lattner discussed this yesterday. I can’t find it in the online archives, so I’ll copy-and-paste it here:
> 
> Right, I read Chris’s message and was trying to respond to it. I guess what I’m saying is I’m not clear what’s missing: do we not know what syntax we’d use, or do we just not know how to implement that syntax, or do we just not even know all the implications of adding this?

The “first step” in making progress on this is to fix the existing constraint solver problems (and the emergent surprising user behavior) handling of optionals and IUOs.  Until that gets resolved, it doesn’t make sense to dig a deeper hole :-)

-Chris