OpenJDK 11: Merging in java.util.Enumerator

This is part of merging upstream changes from OpenJDK 11.28. This CL
updates java.util.Enumerator.

There is a new API added in java.util.Enumerator:
 * public default java.util.Iterator<E> asIterator();

No tests have been added yet, since we first need a class that extends Enumerator and uses the new API.

Test: m droid
Change-Id: I8543267fe55e6286215560f4f273dca6a53a8879
2 files changed