cpptools-srv crashes sometimes during handle_initialize in uv_run on Linux with C_Cpp.intelliSenseCacheSize > 0

[sean-mcmanus]

In the same scenario on Mac, I'm seeing cpptools get stuck, but it might be the same root cause (otherwise, I'll create a new issue for that later). UPDATE: That "stuck" issue is fixed now and was unrelated.

[sean-mcmanus]

In certain cases (on certain machines), the crash is not rare, but repros 99.9% of the time.

[sean-mcmanus]

Our repro case stopped reproing, but we're not sure if it's actually fixed or not.