Improve code sinking near "always throwing" method calls

Rationale:
With simple dex bytecode analysis, the inliner marks methods
that always throw to help subsequent code sinking. This reduces
overhead of non-nullable enforcing calls found in e.g the Kotlin
runtime library (1%-2% improvement on tree microbenchmark, about
5% on Denis' benchmark).

Test: test-art-host test-art-target

Change-Id: I45348f049721476828eb5443738021720d2857c0