tree 06efa56d932dfdaab5ae27b020cdb7e292558dfe
parent e102f1937ca14df87594469430d2e6e0ebe0f357
author Jeff Hao <jeffhao@google.com> 1434582266 -0700
committer Jeff Hao <jeffhao@google.com> 1434737030 -0700

Fix case where block has no predecessor for StringChange.

Removes part that checks for throwing half of instruction. It's no
longer necessary. Also adds regression test.

Bug: 21902684

(cherry-picked from commit 3e91a44bc9063f7f69b5415e3cf162991f73283f)

Change-Id: I8d7308ff227816fb475341c2b74ed84d5695a2f5