[SR-16021] LLDB crash with breakpoint in task group (async/await)

[ixsander]

Previous ID	SR-16021
Radar	None
Original Reporter	@ixsander
Type	Bug

Attachment: Download

Environment

XCode 13.3

Additional Detail from JIRA

Votes	0
Component/s	LLDB for Swift
Labels	Bug, DiagnosticsQoI
Assignee	None
Priority	Medium

md5: 1b76e6bc1c615dda33c588b5b8d93394

Issue Description:

Set a breakpoint in taskgroup (see below) will crash lldb. This is aways reproducible.

lldb-rpc-server-2022-03-17-231155.ips

import SwiftUI

struct ContentView: View {
    var body: some View {
        Text("Hello, world!")
            .padding()
            .task {
                do {
                    try await test1()
                } catch {
                    print(error)
                }
            }
    }
    
    func test1() async throws {
        try await withThrowingTaskGroup(of: Void.self) { group in
            print("test") // Set a breakpoint here will crash LLDB
        }
    }
}

[ixsander]

Any update on this issue? Thanks!