reflection: Add new 1.8 AnnotatedElement methods and tests

Also:
* Bump the size of the Class vtable size since 3 new virtuals were
added to java.lang.Class
* Refactor Method#isDefault test into a separate file within 048 test.

Change-Id: I8420a4d208bb60874a9cf996766313c7d5058c45
diff --git a/test/048-reflect-v8/src/IsDefaultTest.java b/test/048-reflect-v8/src/IsDefaultTest.java
new file mode 100644
index 0000000..177dcf1
--- /dev/null
+++ b/test/048-reflect-v8/src/IsDefaultTest.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 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.Method;
+
+public class IsDefaultTest {
+  interface DefaultInterface {
+    default void sayHi() {
+      System.out.println("hi default");
+    }
+  }
+
+  interface RegularInterface {
+    void sayHi();
+  }
+
+  class ImplementsWithDefault implements DefaultInterface {}
+  class ImplementsWithRegular implements RegularInterface {
+    public void sayHi() {
+      System.out.println("hello specific");
+    }
+  }
+
+  private static void printIsDefault(Class<?> klass) {
+    Method m;
+    try {
+      m = klass.getMethod("sayHi");
+    } catch (Throwable t) {
+      System.out.println(t);
+      return;
+    }
+
+    boolean isDefault = m.isDefault();
+    System.out.println(klass.getName() + " is default = " + (isDefault ? "yes" : "no"));
+  }
+
+  public static void test() {
+    System.out.println("==============================");
+    System.out.println("Are These Methods Default:");
+    System.out.println("==============================");
+
+    printIsDefault(DefaultInterface.class);
+    printIsDefault(RegularInterface.class);
+    printIsDefault(ImplementsWithDefault.class);
+    printIsDefault(ImplementsWithRegular.class);
+  }
+}