Commits
Chris Lattner committed 5549775677a
enhance silgen to treat OptionalSomePattern and EnumElementPattern as
"similar", avoiding false positive "not exhaustive" diagnostics on switches
like:
switch ... {
case let x?: break
case .None: break
}
Also, start using x? patterns in the stdlib more (review appreciated!), which
is what shook this issue out.
Swift SVN r26004