Make sure constantIndexing2 is optimized with DEOPT.

This particular method is also used in foo() to see if
assertIsManaged() holds after going out of bounds.
During my last rewrite (which added a driver to make
sure more code is actually executed), I changed the
method to show a non-deopt case. However, that would
miss this test. I moved the non-deopt case into a new test.

Change-Id: Iaf3e77e33a82ff6cd300753f9e5211529353401c
1 file changed