Rename _alloc() to _new()
See the following commits in branch misc of my public repo:
45e5e0f5 * misc Rename packed_cell_alloc() --> _new(). dbe2120d * Rename config_alloc() --> _new(). 9b41dd55 * linus/misc Rename extend_info_alloc() --> _new().
Leaving memarea_alloc() untuched. It's not allocating an "object" like the others.