557fd00a6f
Implement the ability for Python commands to be interrupted by pressing CTRL+C Also add a new Mutex subclass that attempts to be helpful for debugging by logging actions performed on it FYI of all interested - there is a separate deadlocking issue related to how LLDB dispatches CTRL+C that might cause LLDB to deadlock upon pressing CTRL+C while in a Python command. This is not a regression, and was just previously masked by us not even trying to bail out of Python commands, so that it would not be clear from a user perspective whether we were deadlocked or stuck in an inconsistent state within the Python interpreter. llvm-svn: 170612