Request for reviews (S): 6714406: 6u6p Windows-amd64 build failure

[Vladimir Kozlov]

http://webrev.invokedynamic.info/kvn/6714406/index.html

Fixed 6714406: 6u6p Windows-amd64 build failure

Problem:
Node::dominates() does not check nodes for TOP in some cases.

Solution:
Add missed checks for TOP and missed checks for non-dominating cases.

Reviewed by: never
Fix verified (y/n): y, Windows-amd64 build

Other testing:
JPRT, NSK tests, runThese, CTW