[llvm-bugs] [Bug 48143] New: lldb-vscode tests failing on macOS after `check-lldb`

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48143

            Bug ID: 48143
           Summary: lldb-vscode tests failing on macOS after `check-lldb`
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: vsk at apple.com
                CC: jdevlieghere at apple.com, llvm-bugs at lists.llvm.org

Several lldb-vscode tests appear to fail 100% of the time on macOS 10.15.6.

I see two failure modes. The first is:

```
  File "../lldb/packages/Python/lldbsuite/test/tools/lldb-vscode/vscode.py",
line 306, in send_recv
    raise ValueError(desc)
ValueError: no response for "initialize"
```

And the second is:

```
  File "../lldb/packages/Python/lldbsuite/test/tools/lldb-vscode/vscode.py",
line 573, in request_disconnect
    return self.send_recv(command_dict)
  File "../lldb/packages/Python/lldbsuite/test/tools/lldb-vscode/vscode.py",
line 306, in send_recv
    raise ValueError(desc)
ValueError: no response for "disconnect"
```

After the test run, I see some ~20 or so lldb-vscode processes idling on my
machine. The specific tests that are failing are:

```
Failed Tests (13):
  lldb-api :: tools/lldb-vscode/attach/TestVSCode_attach.py
  lldb-api ::
tools/lldb-vscode/breakpoint-events/TestVSCode_breakpointEvents.py
  lldb-api :: tools/lldb-vscode/breakpoint/TestVSCode_setBreakpoints.py
  lldb-api ::
tools/lldb-vscode/breakpoint/TestVSCode_setExceptionBreakpoints.py
  lldb-api :: tools/lldb-vscode/breakpoint/TestVSCode_setFunctionBreakpoints.py
  lldb-api :: tools/lldb-vscode/console/TestVSCode_console.py
  lldb-api :: tools/lldb-vscode/coreFile/TestVSCode_coreFile.py
  lldb-api :: tools/lldb-vscode/launch/TestVSCode_launch.py
  lldb-api :: tools/lldb-vscode/module/TestVSCode_module.py
  lldb-api :: tools/lldb-vscode/runInTerminal/TestVSCode_runInTerminal.py
  lldb-api :: tools/lldb-vscode/stackTrace/TestVSCode_stackTrace.py
  lldb-api :: tools/lldb-vscode/step/TestVSCode_step.py
  lldb-api :: tools/lldb-vscode/variables/TestVSCode_variables.py
```

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