getInheritedConcreteMember abstract method
Returns the most specific member with the given name that this type
inherits from a superclass or mixin.
Returns null if no member is inherited.
This method is semantically equivalent to calling
inheritedConcreteMembers and then using the [] operator, but it
potentially has better performance, since it does not need to consider all
possible inherited names.
Implementation
ExecutableElement? getInheritedConcreteMember(Name name);