Optimizing compiler support for directly calling interface methods

This teaches the optimizing compiler how to perform invoke-super on
interfaces. This should make the invokes generally faster.

Bug: 24618811

Change-Id: I7f9b0fb1209775c1c8837ab5d21f8acba3cc72a5
diff --git a/test/972-iface-super-multidex/src/Main.java b/test/972-iface-super-multidex/src/Main.java
new file mode 100644
index 0000000..3fb3f45
--- /dev/null
+++ b/test/972-iface-super-multidex/src/Main.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * 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.
+ */
+
+import java.lang.reflect.*;
+public class Main {
+  public static void main(String[] args) {
+    Class<?> c = null;
+    try {
+      c = Class.forName("ConcreteClass");
+    } catch (Exception e) {
+      System.out.println("Could not load class");
+      e.printStackTrace();
+      return;
+    }
+    try {
+      Method m = c.getMethod("runReal");
+      System.out.println((String)m.invoke(c.newInstance(), new Object[0]));
+    } catch (Exception e) {
+      System.out.println("Unknown exception occurred");
+      e.printStackTrace();
+    }
+    try {
+      Method m = c.getMethod("runConflict");
+      try {
+        System.out.println((String)m.invoke(c.newInstance(), new Object[0]));
+      } catch (InvocationTargetException e) {
+        throw e.getCause();
+      }
+    } catch (AbstractMethodError e) {
+      System.out.println("Unexpected AME caught");
+      e.printStackTrace();
+    } catch (NoSuchMethodError e) {
+      System.out.println("Unexpected NSME caught");
+      e.printStackTrace();
+    } catch (IncompatibleClassChangeError e) {
+      System.out.println("Expected ICCE caught");
+    } catch (Throwable e) {
+      System.out.println("Unknown exception caught!");
+      e.printStackTrace();
+    }
+  }
+}