Make checker-constant-folding less dexer dependent.

In IntAddition2, D8 either folds everything or folds nothing depending
on locals debug information. Furthermore, it likes to use 3 registers
when local debug information is needed.

Bug: 65168732
Test: art/test/run-test ... 442-checker-constant-folding

Change-Id: I72adec8f55db005c9fcae63d8b5db344cc91c00d
2 files changed