Fix incorrect token counting introduced by r185319.

This lead to weird formatting.
Before:
DoSomethingWithVector({ {} /* No data */ }, {
  { 1, 2 }
});
After:
DoSomethingWithVector({ {} /* No data */ }, { { 1, 2 } });

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@185346 91177308-0d34-0410-b5e6-96231b3b80d8