RFR(XS): 8066775 opto/node.hpp:355, assert(i < _max) failed: oob: i=1, _max=1

[Roland Westrelin]

http://cr.openjdk.java.net/~roland/8066775/webrev.00/

Another follow up from "8054478 C2: Incorrectly compiled char[] array access crashes JVM”

The part of the graph where the CastII becomes dead and the CastII's control is an IfTrue projection with input top. 

Roland.