@Override
	public int getStateType() {
		return RULE_STOP;
	}
The last node in the ATN for a rule, unless that rule is the start symbol.
 In that case, there is one transition to EOF. Later, we might encode
 references to all calls to this rule to compute FOLLOW sets for
 error handling.
runtime/Java/src/org/antlr/v4/runtime/atn/RuleStopState.java