[Lldb-commits] [lldb] [lldb][test] Fix undefined behaviour in multi process driver (PR #226949)

[David Spickett via lldb-commits]

DavidSpickett wrote:

This might be the reason two tests are failing on Windows on Arm:
```
Unresolved Tests (2):
  lldb-api :: api/multiple-debuggers/TestMultipleDebuggers.py
  lldb-api :: api/multithreaded/TestMultithreaded.py
```
The driver builds fine but fails at runtime.

Even if it isn't, what I'm fixing is UB anyway and I can rule it out as the cause.

https://github.com/llvm/llvm-project/pull/226949