Migrated EvaluationTestCase (and all tests depending on it) to JUnit 4.

--
MOS_MIGRATED_REVID=109064201
diff --git a/src/test/java/com/google/devtools/build/lib/syntax/EvaluationTest.java b/src/test/java/com/google/devtools/build/lib/syntax/EvaluationTest.java
index be1cf6d..7a10338 100644
--- a/src/test/java/com/google/devtools/build/lib/syntax/EvaluationTest.java
+++ b/src/test/java/com/google/devtools/build/lib/syntax/EvaluationTest.java
@@ -38,8 +38,9 @@
  */
 @RunWith(JUnit4.class)
 public class EvaluationTest extends EvaluationTestCase {
+
   @Before
-  public void setBuildMode() throws Exception {
+  public final void setBuildMode() throws Exception {
     super.setMode(TestMode.BUILD);
   }