RFR: 8226517: [lworld] C2 compilation fails with assert(n->Opcode() != Op_Phi) failed: cannot match

[Roland Westrelin]

http://cr.openjdk.java.net/~roland/8226517/webrev.00/

Logic that assigns new aliases for flattened value arrays must handle
StoreCM specially because it has an edge to the store it follows and
keeps track of the alias of this store.

Roland.