Implement clustering support in run_test_cases.py.

tests/gtest_fake/gtest_fake_pass.py

Index: tests/gtest_fake/gtest_fake_pass.py
diff --git a/tests/gtest_fake/gtest_fake_pass.py b/tests/gtest_fake/gtest_fake_pass.py
index cd2ba2fdb8bf67933184eed08fbfa395c1f539e4..ede37680eef0cde93c10d72d96f62efefcbb25ce 100755
--- a/tests/gtest_fake/gtest_fake_pass.py
+++ b/tests/gtest_fake/gtest_fake_pass.py
@@ -28,6 +28,7 @@ TOTAL = sum(len(v) for v in TESTS.itervalues())
 def main():
   parser = optparse.OptionParser()
   parser.add_option('--gtest_list_tests', action='store_true')
+  parser.add_option('--gtest_print_time', action='store_true')
   parser.add_option('--gtest_filter')
   options, args = parser.parse_args()
   if args:
@@ -45,7 +46,8 @@ def main():
   if options.gtest_filter:
     # Simulate running one test.
     print 'Note: Google Test filter = %s\n' % options.gtest_filter
-    print gtest_fake_base.get_test_output(options.gtest_filter)
+    for i in options.gtest_filter.split(':'):
+      print gtest_fake_base.get_test_output(i)
     print gtest_fake_base.get_footer(1, 1)
     return 0