8010101: Intersection type cast issues redundant unchecked warning

Code for checking intersection type cast is incorrectly swapping operands, leading to spurious warnings

Reviewed-by: jjg

langtools/test/tools/javac/lambda/Intersection02.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8010101
+ * @summary Intersection type cast issues redundant unchecked warning
+ * @compile/fail/ref=Intersection02.out -Werror -Xlint:unchecked -XDrawDiagnostics Intersection02.java
+ */
+import java.io.Serializable;
+import java.util.List;
+
+class Intersection02 {
+
+    interface P<X> { }
+
+    void test(List<String> ls) {
+        Object o1 = (List<String> & Serializable)ls;
+        Object o2 = (List<String> & Serializable & P<String>)ls;
+    }
+}