Update test/interface_tests.jl

Co-authored-by: Isaac Wheeler <47340776+Ickaser@users.noreply.github.com>

Author: ChrisRackauckas

test/interface_tests.jl

@@ -72,6 +72,9 @@ testva_end = VectorOfArray([fill(2.0, 2) for i in 1:10])
 last_col = lastindex(testva_end, 2)
 @inferred testva_end[1, last_col]
 @test testva_end[1, last_col] == 2.0
+last_row = lastindex(testva_end)
+@inferred testva_end[last_row, 1]
+@test testva_end[last_row, 1 == 2.0]
 
 # mapreduce
 testva = VectorOfArray([[1, 2, 3], [4, 5, 6], [7, 8, 9]])