Method deleteTree

Fleece/Tree/MutableNode.hh:116–128

        void deleteTree() {
            unsigned n = childCount();
            for (unsigned i = 0; i < n; ++i) {
                auto child = _children[i].asMutable();
                if (child) {
                    if (child->isLeaf())
                        delete (MutableLeaf*)child;
                    else
                        ((MutableInterior*)child)->deleteTree();
                }
            }
            delete this;
        }


        unsigned leafCount() const {