[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: http://llvm.org/svn/llvm-project/cfe/trunk@182612 91177308-0d34-0410-b5e6-96231b3b80d8
More tests and a fix for braced init lists.

Before: f(new vector<int> { 1, 2, 3 });
After:  f(new vector<int>{ 1, 2, 3 });

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@182614 91177308-0d34-0410-b5e6-96231b3b80d8
Fix assert on temporary std::initializer_list.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@182615 91177308-0d34-0410-b5e6-96231b3b80d8