ART: Fixed subsequent CHECK-NOTs Checker bug

Matching a group of CHECK-NOT lines caused Checker to crash due to
incorrectly overwriting the varState variable. The second use of the
variable was renamed and a regression test added.

Change-Id: I1a879cf5368acca6b5092f69a9caa47b89a79532

1 files changed, 4 insertions, 0 deletions

diff --git a/tools/checker_test.py b/tools/checker_test.py
index 9b04ab0d91..2846a9cc82 100755
--- a/tools/checker_test.py
+++ b/tools/checker_test.py
@@ -342,6 +342,10 @@ class TestCheckGroup_Match(unittest.TestCase):
     self.__notMatchMulti([("foo", CheckVariant.Not)],
                          """abc foo
                             def""")
+    self.__notMatchMulti([("foo", CheckVariant.Not),
+                          ("bar", CheckVariant.Not)],
+                         """abc
+                            def bar""")
 
   def test_LineOnlyMatchesOnce(self):
     self.__matchMulti([("foo", CheckVariant.DAG),