A specific method that is safe to call on null.

Currently, only ==, != and is_same_instance are safe

Property definitions

nitc $ MMethod :: is_null_safe
	# A specific method that is safe to call on null.
	# Currently, only `==`, `!=` and `is_same_instance` are safe
	fun is_null_safe: Bool do return name == "==" or name == "!=" or name == "is_same_instance"
src/model/model.nit:2440,2--2442,92