junit sm: accept null method names in list nodes

plugins/junit/test/com/intellij/execution/junit/JUnitTreeByDescriptionHierarchyTest.java

@@ -34,6 +34,7 @@ public class JUnitTreeByDescriptionHierarchyTest {
   @Test
   public void testEmptySuite() throws Exception {
     doTest(Description.createSuiteDescription("empty suite"), "##teamcity[enteredTheMatrix]\n" +
+                                                              "##teamcity[suiteTreeNode name='empty suite' locationHint='java:test://empty suite.empty suite']\n" +
                                                               "##teamcity[treeEnded]\n");
   }
 

plugins/junit_rt/src/com/intellij/junit4/JUnit4TestListener.java

@@ -220,6 +220,11 @@ public class JUnit4TestListener extends RunListener {
       if (methodName != null && (parent == null || !isParameter(parent))) {
         methodName = getShortName(JUnit4ReflectionUtil.getClassName(description)) + "." + methodName;
       }
+
+      if (methodName == null && description.getChildren().isEmpty()) {
+        methodName = description.getDisplayName();
+      }
+
       myMethodNames.put(description, methodName);
     }
     return methodName;