[test] Print more details when terminating hanging tests

This prints the same details about a process when attempting to kill it
as when termination fails with an exception. This will make it
easier to correlate the two and to see which might be hanging.

Bug: v8:8292
Change-Id: I4b6a50386d4e9d84ded55cf262f19529138654a9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2006092Reviewed-by: Tamer Tas <tmrts@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65837}

tools/testrunner/local/command.py

@@ -134,16 +134,16 @@ class BaseCommand(object):
 
   def _abort(self, process, abort_called):
     abort_called[0] = True
+    started_as = self.to_string(relative=True)
+    process_text = 'process %d started as:\n  %s\n' % (process.pid, started_as)
     try:
-      print('Attempting to kill process %s' % process.pid)
+      print('Attempting to kill ' + process_text)
       sys.stdout.flush()
       self._kill_process(process)
     except OSError as e:
       print(e)
-      started_as = self.to_string(relative=True)
-      print("Unruly process started as:\n  %s\n" % started_as)
+      print('Unruly ' + process_text)
       sys.stdout.flush()
-      pass
 
   def __str__(self):
     return self.to_string()