Revert "Revert "Update ASM to 6.0 beta with support for java 9 class files.""

This reverts commit f1d93e23fc555c20e8258cb1d8ee534392e8b881.

Change-Id: Ie3c247b9e71ddfa485e253b67352e5a4d794d652
diff --git a/src/test/examplesAndroidO/invokecustom/TestGenerator.java b/src/test/examplesAndroidO/invokecustom/TestGenerator.java
index 5c550e9..574fe14 100644
--- a/src/test/examplesAndroidO/invokecustom/TestGenerator.java
+++ b/src/test/examplesAndroidO/invokecustom/TestGenerator.java
@@ -39,7 +39,7 @@
     ClassReader cr = new ClassReader(new FileInputStream(classNamePath.toFile()));
     ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
     cr.accept(
-        new ClassVisitor(Opcodes.ASM5, cw) {
+        new ClassVisitor(Opcodes.ASM6, cw) {
           @Override
           public void visitEnd() {
             generateMethodTest1(cw);