[14] RFR(S): 8225653: Provide more information when hitting SIGILL from HaltNode

[Vladimir Ivanov]

> http://cr.openjdk.java.net/~chagedorn/8225653/webrev.02/

src/hotspot/share/opto/node.hpp:

    void init_class_id(jushort c) {
-    assert(c <= _max_classes, "invalid node class");
      _class_id = c; // cast out const

I'd keep the assert as is just in case the number of supported cases is 
extended or some classes are removed in the future. Or does it cause 
compilation failures?

No need for a new webrev.

Best regards,
Vladimir Ivanov