[test] Pass tree path to local continuity check
This is a follow up MR to !163 (merged) motivated by some insight after merging:
For a nontrivial tree you may want to use different continuity checks
for different leaf nodes. In part this could be achieved by switching
with the node type. But this lacks some information, because the same
(local) node may have different global continuity properties. This
is e.g. the case for the LagrangeBasis
and the LagrangeDGBasis
.
Hence we miss some information if we do not pass the tree path.