public long getTotalTimeInPrediction() {
		DecisionInfo[] decisions = atnSimulator.getDecisionInfo();
		long t = 0;
		for (int i=0; i<decisions.length; i++) {
			t += decisions[i].timeInPrediction;
		}
		return t;
	}
Gets the total time spent during prediction across all decisions made
during parsing. This value is the sum of
{@link DecisionInfo#timeInPrediction} for all decisions.
runtime/Java/src/org/antlr/v4/runtime/atn/ParseInfo.java