Commits

Chris Lattner committed 183c279889f
change visitAssignExpr to only get retypecheck one side of its subexpr at a time, and change it to get the source before the destination. This is the right thing to do and also conveniently works around a bogus: '_' can only appear in a pattern or on the left side of an assignment diagnostic. This needs to be fixed in a more systematic way to cover other cases, but this change is the right thing to do independently of that. Swift SVN r29929