in reactor/Core/src/jetbrains/mps/logic/reactor/evaluation/EvaluationSession.java [60:66]
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ParameterKey<?> that = (ParameterKey<?>) o;
return name != null ? name.equals(that.name) : that.name == null;
}