[analyzer; alternate edges] Add a new test case file to regression test the new arrows algorithm.

This essentially combines the tests in plist-output.m and plist-alternate-output.m.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@182612 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed