[LLDB][MIPS] Mark TestConcurrentEvents.py expected failure, as MIPS atomic sequences are yet to be supported in LLDB

Reviewers: jaydeep.
Subscribers: lldb-commits.
Differential Revision: http://reviews.llvm.org/D15488

llvm-svn: 255488

lldb/packages/Python/lldbsuite/test/functionalities/thread/concurrent_events/TestConcurrentEvents.py

@@ -21,6 +21,7 @@ from lldbsuite.test.lldbtest import *
 import lldbsuite.test.lldbutil as lldbutil
 
 @skipIfWindows
+@expectedFailureAll(archs=['mips64', 'mips64el']) # Atomic sequences are not supported yet for MIPS in LLDB. 
 class ConcurrentEventsTestCase(TestBase):
 
     mydir = TestBase.compute_mydir(__file__)