Open Radar

 
Summary:
I haven't been able to use lldb with Swift in Xcode since Swift first came out. In the most recent months, I was under the impression that this was because I was using Carthage, which according to Apple is not supported due to the use of precompiled Swift binaries.

However, I recently started playing with a side project without the use of Carthage, and after writing just a couple hundred lines of Swift on a brand new Xcode 8 GM project, as soon as I tried to set a breakpoint and `po` anything, I only got lldb errors everywhere. I originally filed rdar://28477944, but I still reproduce these in Xcode 8.1 Beta 2.

See open source Github project that I used to reproduce this: https://github.com/JaviSoto/SwiftPoker. In case I push more commits, try commit hash `28c3b4acfe4c1bfa80a99f4071f75b00c99762b4` where I definitely reproduced these errors. See attached screenshots for examples of the portions of code where I set the breakpoints and the errors I got.

Steps to Reproduce:
1. Open project from https://github.com/JaviSoto/SwiftPoker commit hash 28c3b4acfe4c1bfa80a99f4071f75b00c99762b4
2. Set breakpoint on Hand.swift:208
3. Run tests on SwiftPoker target
4. Wait for breakpoint to be hit
4. Type `po $0` in lldb

Expected Results:
The contents of the anonymous variable `$0` are printed.

Actual Results:
It doesn't work, and error is printed: 

error: <EXPR>:3:1: error: anonymous closure argument not contained in a closure
$0
^

Version:
Xcode 8.1 Beta 2, Swift 3, macOS Sierra GM