Update TestConcurrentEvents to use UnixSignals instead of python signals.

[chaoren]

• Typo.

[chaoren]

• Another Typo.

[chaoren]

• Remove unnecessary import.

[ovyalov]

lgtm

test/functionalities/thread/concurrent_events/TestConcurrentEvents.py

 """
 
 import os, signal, time
 import unittest2
 import lldb
 from lldbtest import *
 import lldbutil
 
-# ==================================================
-# Dictionary of signal names
-# ==================================================
-signal_names = dict((getattr(signal, n), n) \
-        for n in dir(signal) if n.startswith('SIG') and '_' not in n )
-
 @skipIfWindows
 class ConcurrentEventsTestCase(TestBase):
 
     mydir = TestBase.compute_mydir(__file__)
 
     #
     ## Tests for multiple threads that generate a single event.
     #
def describe_threads(self):
                 bpid = x.GetStopReasonDataAtIndex(0)
                 bp = self.inferior_target.FindBreakpointByID(bpid)
                 reason_str = "%s hit %d times" % (lldbutil.get_description(bp), bp.GetHitCount())
             elif reason == lldb.eStopReasonWatchpoint:
                 watchid = x.GetStopReasonDataAtIndex(0)
                 watch = self.inferior_target.FindWatchpointByID(watchid)
                 reason_str = "%s hit %d times" % (lldbutil.get_description(watch), watch.GetHitCount())
             elif reason == lldb.eStopReasonSignal:
-                reason_str = "signal %s" % (signal_names[x.GetStopReasonDataAtIndex(0)])
+                signals = self.inferior_process.GetUnixSignals()
+                signal_name = signals.GetSignalAsCstring(x.Get(x.GetStopReasonDataAtIndex(0)))
+                reason_str = "signal %s" % signal_name
 
             location = "\t".join([lldbutil.get_description(x.GetFrameAtIndex(i)) for i in range(x.GetNumFrames())])
             ret.append("thread %d %s due to %s at\n\t%s" % (id, status, reason_str, location))
         return ret
 
     def add_breakpoint(self, line, descriptions):
         """ Adds a breakpoint at self.filename:line and appends its description to descriptions, and
             returns the LLDB SBBreakpoint object.