Merge "Ignore failures of WeakHashMapTest#test_keySet in libcore tests." am: c85f88b4c1 am: 51dc87eae2
am: b65688aac4

* commit 'b65688aac40dd116c1fc0ee291b6948953265d0e':
  Ignore failures of WeakHashMapTest#test_keySet in libcore tests.