Fix expectedFailureLLGS to expect failure when host platform is not linux.

[flackr]

Summary

expectedFailureLLGS has an early return false if the platform is not linux - except it should be checking the target platform on which the server is running for remote tests.

[tberghammer]

test/lldbtest.py

609 ↗

(On Diff #23334)

Can you change it to "llgs local is only an option on Linux targets"?

lldb/trunk/test/lldbtest.py

 def expectedFailureLinux(bugnumber=None, compilers=None):
     return expectedFailureOS(['linux'], bugnumber, compilers)
 
 def expectedFailureWindows(bugnumber=None, compilers=None):
     return expectedFailureOS(['windows'], bugnumber, compilers)
 
 def expectedFailureLLGS(bugnumber=None, compilers=None):
     def fn(self):
-        # llgs local is only an option on Linux systems
-        if 'linux' not in sys.platform:
+        # llgs local is only an option on Linux targets
+        if not self.platformIsLinux():
             return False
         self.runCmd('settings show platform.plugin.linux.use-llgs-for-local')
         return 'true' in self.res.GetOutput() and self.expectedCompiler(compilers)
     return expectedFailure(fn, bugnumber)
 
 def skipIfRemote(func):
     """Decorate the item to skip tests if testing remotely."""
     if isinstance(func, type) and issubclass(func, unittest2.TestCase):