Restore partial LSE. This fixes a bug where we were using the wrong value for initializing an allocation that we moved. See this test: https://android-review.googlesource.com/c/platform/art/+/1825138/4/test/828-partial-lse/src/Main.java Run LSE twice: one for the classical load store eliminiation, one for moving allocations. Test: test.py Bug: 197981962 Change-Id: If317e10e239488876180047040dba66ae3fc8d4c