Change invoke-object-init to /range form

The invoke-object-init instruction pretends to be a regular invoke
that only knows how to call Object.<init>.  As such it always takes
one argument, and if we use the /range version we can specify the
"this" register with 16 bits instead of only 4.

Bug 3486699

Change-Id: I9ee4700c6935beee1dcbaa583b57befd33641414
28 files changed