Just stop using Swift. It's basically junk. You are describing one of the reasons why.

Well, it's apparent somebody in Cupertino had screwed up. Quite possibly an equal opportunity action employee.

I see the following ways in which Apple could fix lldb issues 1 go back to gdb 2 scrap the swift runtime and make proprietary swift runtime just like it was back in NextStep days 3 scrap swift altogether and migrate back either to objc or some other language that is not overblown with features and has a working debugger cause it's 100% obvious now that swift is 10 years in making that debugger is beyond repair. Amen.