RFR(S): 8191950: assertion failed: no insertions allowed

[Roland Westrelin]

http://cr.openjdk.java.net/~roland/8191950/webrev.00/

C2 is trying to incrementally inline a method in a part of the graph
that is dead and for which one the projections of the call to inline is
also an input to the call. We don't have an inexpensive way to check for
unreachable calls when doing incremental inlining so instead I propose
we explicitly check for the corner that fails here.

No test case as triggering incremental inlining reliably is hard.

Roland.