Request for reviews (S): 6802499: EA: assert(false,"unknown node on this path")

[Vladimir Kozlov]

http://cr.openjdk.java.net/~kvn/6802499/webrev.00

Fixed 6802499: EA: assert(false,"unknown node on this path")

Problem:
Escape analysis code miss checks for SCMemProj node
when working memory edges.

Solution:
Add missing checks for SCMemProj node.

Note: object should not be scalar replaceable if a LoadStore
node access its field, the corresponding check done during
ConnectionGraph construction.

Reviewed by:

Fix verified (y/n): y, test case

Other testing:
JPRT, CTW (with -XX:+DoEscapeAnalysis)