* java/util/IdentityHashMap.java (containsKey): Use getHash.
(get): Likewise.
(put): Likewise.
(remove): Likewise.
(getHash): New method.
(tombstone, emptyslot): Now static final.
(put): Correctly determine when to rehash, and correctly rehash.
(containsKey, remove): Test against table length with `>='.
From-SVN: r45841