tree c4d319c79401442061249055c40f27fbc5d68fdf
parent f99628f7673c21c42be34f95bef6bbb50cd99f20
author Andreas Gampe <agampe@google.com> 1436466614 -0700
committer Andreas Gampe <agampe@google.com> 1436477795 -0700

ART: Change merges with Undefined to Undefined

The result of a merge with an Undefined type should be Undefined.
Conflicts are allowed to be copied around, but Undefined registers
should not be touched at all, except to be written into.

Add a success test case (the register isn't used) and a fail test
case (the register is tried to be copied).

Bug: 22331663
Bug: 22371999
Change-Id: I9697ce31c1d2ab5aee0433dcf1253bcca79c2983