fix special cases for linked_list_add

Automated merge

implement cx_tree_add_node()

add cx_tree_add_node test

add some low level tree function declarations

implement at least freeing the linked list container

add utility to verify allocations

fix reallocate_null test not used and wrong

(0) -300 -100 -30 -10 -8 +8 +10 +30 +100 +300 tip

mercurial