Remove explicit end-of-array markers from tests.

Remove explicit end-of-array markers from tests.

Instead of using NULL- or otherwise terminated arrays as input to test
functions, use a template wrapper for the functions that take these
arrays to allow the compiler to pass the declared size of the array.
This is safer, as with this approach it is not possible to forget the
terminator.

Change-Id: I7cdb91c055d9026dabebcd9adc657a66fb9a99c3