public SrcOp addCodeForLoopLookaheadTempVar(IntervalSet look) {
		TestSetInline expr = addCodeForLookaheadTempVar(look);
		if (expr != null) {
			CaptureNextTokenType nextType = new CaptureNextTokenType(factory, expr.varName);
			addIterationOp(nextType);
		}
		return expr;
	}
The state associated wih the (A|B|...) block not loopback, which
 is super.stateNumber
tool/src/org/antlr/v4/codegen/model/LL1Loop.java