Add back accidentally deleted line and add test for it.

Before:
f("a", "b"
  "c");
After:
f("a", "b"
       "c");

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181980 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed