added a demonstration of how Kotlin currently handles nullable collections on for loops - by throwing NPEs

runtests/test/stdlib/testall/LanguageTestAllTest.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package stdlib.testall;
+
+import junit.framework.TestSuite;
+import test.language.*;
+
+/**
+ */
+public class LanguageTestAllTest {
+  public static TestSuite suite() {
+    return new TestSuite(NullableCollectionsTest.class);
+  }
+}