dfa: types with wildcard parameters are not equal

java/java-tests/testData/inspection/dataFlow/fixture/ForeachOverWildcards.java

@@ -0,0 +1,12 @@
+import org.jetbrains.annotations.Nullable;
+
+class Some {
+  void bar2(@Nullable Iterable<? extends String> dirs) {
+    if (dirs != null) {
+      for (String dir : dirs) {
+
+      }
+    }
+  }
+
+}

java/java-tests/testSrc/com/intellij/codeInspection/DataFlowInspectionTest.java

@@ -296,6 +296,7 @@ public class DataFlowInspectionTest extends LightCodeInsightFixtureTestCase {
   public void testAnonymousMethodIndependence() { doTest(); }
   public void testAnonymousFieldIndependence() { doTest(); }
   public void testNoConfusionWithAnonymousConstantInitializer() { doTest(); }
+  public void testForeachOverWildcards() { doTest(); }
   
   public void _testNullCheckBeforeInstanceof() { doTest(); }
 }