[14] RFR(XS): 8236140: assert(!VerifyHashTableKeys || _hash_lock == 0) failed: remove node from hash table before modifying it

[Christian Hagedorn]

Hi

Please review the following patch:
https://bugs.openjdk.java.net/browse/JDK-8236140
http://cr.openjdk.java.net/~chagedorn/8236140/webrev.00/

An input of the StoreL node in the test case was set without rehashing 
the store which triggers the assertion failure.

Thank you!

Best regards,
Christian