Add java8 debug tests

Adds tests for debugging lambda and default methods. The test should
be written to support desugaring.

Bug: 37731140
Bug: 38218137
Change-Id: I2e79346c722262331e560786a8999733f7b596b6

src/test/debugTestResourcesJava8/DebugDefaultMethod.java

diff --git a/src/test/debugTestResourcesJava8/DebugDefaultMethod.java b/src/test/debugTestResourcesJava8/DebugDefaultMethod.java
new file mode 100644
index 0000000..db216b3
--- /dev/null
+++ b/src/test/debugTestResourcesJava8/DebugDefaultMethod.java
@@ -0,0 +1,35 @@
+// Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+public class DebugDefaultMethod {
+
+  interface I {
+    default void doSomething(String msg) {
+      String name = getClass().getName();
+      System.out.println(name + ": " + msg);
+    }
+  }
+
+  static class DefaultImpl implements I {
+  }
+
+  static class OverrideImpl implements I {
+
+    @Override
+    public void doSomething(String msg) {
+      String newMsg = "OVERRIDE" + msg;
+      System.out.println(newMsg);
+    }
+  }
+
+  private static void testDefaultMethod(I i) {
+    i.doSomething("Test");
+  }
+
+  public static void main(String[] args) {
+    testDefaultMethod(new DefaultImpl());
+    testDefaultMethod(new OverrideImpl());
+  }
+
+}

src/test/debugTestResourcesJava8/DebugLambda.java

diff --git a/src/test/debugTestResourcesJava8/DebugLambda.java b/src/test/debugTestResourcesJava8/DebugLambda.java
new file mode 100644
index 0000000..c3b8695
--- /dev/null
+++ b/src/test/debugTestResourcesJava8/DebugLambda.java
@@ -0,0 +1,23 @@
+// Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+public class DebugLambda {
+
+  interface I {
+    int getInt();
+  }
+
+  private static void printInt(I i) {
+    System.out.println(i.getInt());
+  }
+
+  public static void testLambda(int i, int j) {
+    printInt(() -> i + j);
+  }
+
+  public static void main(String[] args) {
+    DebugLambda.testLambda(5, 10);
+  }
+
+}