RFR(S): 8205107: assert(c->Opcode() == Op_SafePoint) failed: broken outer loop

[Roland Westrelin]

> Roland, why we need to keep Safepoint in Outer loop if we have call?

I double checked with a simple test case and we don't keep the safepoint
if there's a call so it's indeed strange that we would need Nils' patch.

Roland.