[nextest-runner] use grace period on receiving Windows Ctrl-C #1984
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Previously on Windows, we would not do anything at all on receiving Ctrl-C, letting tests exit on their own.
With this change, in case of Ctrl-C, nextest will apply the same grace period that it does on Unix. By default, nextest will now wait 10 seconds before calling
TerminateJobObject
on the test. Like on Unix, a double Ctrl-C will kill the test immediately.The behavior in case of timeouts is unchanged -- call
TerminateJobObject
immediately.This PR also has a few more fixes to Windows display, and to cancellation on all platforms.