Have the opt. compiler set the size of "empty" frames to zero.

This is to mimic Quick's behavior and honor stack frame
alignment constraints after changes introduced by Change-Id

This issue use to make oatdump crash on oat files produced by
the optimized compiler (e.g.

Change-Id: I8ba52601edb0a0993eaf8923eba55aafdce5043e
2 files changed