[AArch64] Restore the test of conditional branch fusion

Restore the functionality of this test that was broken by
https://reviews.llvm.org/rL306144.

Differential revision: https://reviews.llvm.org/D36807

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311389 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed