llvm-project

e427e934 - [lldb][dap] Avoid concurrent `HandleCommand` calls (#83162)

[lldb][dap] Avoid concurrent `HandleCommand` calls (#83162) The `EventThreadFunction` can end up calling `HandleCommand` concurrently with the main request processing thread. The underlying API does not appear to be thread safe, so add a narrowly scoped mutex lock to prevent calling it in this place from more than one thread. Fixes #81686. Prior to this, TestDAP_launch.py is 4% flaky. After, it passes in 1000 runs.