@Override
          protected Class<?> findClass(String name) throws ClassNotFoundException {
            if (name.equals(className)) {
              return defineClass(className, bytes, 0, bytes.length);
            }
            throw new ClassNotFoundException(name);
          }
Tests that we can successfully generate a forwarding class that calls the constructor of the
given class. We'll then load the created class and call the forwarding method, checking that it
does indeed call the constructor.
value/src/test/java/com/google/auto/value/processor/ForwardingClassGeneratorTest.java