Fix another source of undeterministic inlining.

Needing an environment and throwing might depend in which
caller first tries to inline. HLoadClass has such logic. Therefore,
do not cache the non-inlineable flag for those cases.

Does not apply to aosp, as this code has been removed.

bug:20037935

Change-Id: I5e3d36ffb832fb3c3f3c604c79cdbf4f37c749e1