ai :: SearchSolver :: memorize_late
# Use memory only on visited (closed) state.
# Less memory operations, but two big drawbacks:
# * duplicated nodes can fill the `todo` queue (and the memory)
# * duplicated nodes require more invocation of `SearchProblem::heuristic`
#
# Note: if `memorize` is false, then this has no effect.
#
# Default: `false`
var memorize_late: Bool = false is writable
lib/ai/search.nit:261,2--269,44