Fix tsan_rv as it was broken due to recent "testcase" failures

It was failing with a "_cur_testcase not defined" error.
TBR=eugenis
Review URL: http://codereview.chromium.org/8872016

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@113598 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/tsan_analyze.py

@@ -67,6 +67,7 @@ class TsanAnalyzer(object):
     '''
 
     self._use_gdb = use_gdb
+    self._cur_testcase = None
 
   def ReadLine(self):
     self.line_ = self.cur_fd_.readline()

tools/valgrind/valgrind_test.py

@@ -966,7 +966,6 @@ class ThreadSanitizerRV1Analyzer(tsan_analyze.TsanAnalyzer):
     self.out = open(self.TMP_FILE, "w")
 
   def Report(self, files, testcase, check_sanity=False):
-    # TODO(timurrrr): handle testcase?
     reports = self.GetReports(files)
     for report in reports:
       print >>self.out, report