full_nameEven if two mentities cannot share the same full_name, we use a Trie of
arrays of mentities to be consistent with name_prefixes.
# Prefix tree for mentities `full_name`
#
# Even if two mentities cannot share the same `full_name`, we use a Trie of
# arrays of mentities to be consistent with `name_prefixes`.
var full_name_prefixes = new Trie[Array[MEntity]]
src/model/model_index.nit:268,2--272,50