@Override
	public void reportContextSensitivity(Parser recognizer,
										 DFA dfa,
										 int startIndex,
										 int stopIndex,
										 int prediction,
										 ATNConfigSet configs)
	{
		for (ANTLRErrorListener listener : delegates) {
			listener.reportContextSensitivity(recognizer, dfa, startIndex, stopIndex, prediction, configs);
		}
	}
This implementation of {@link ANTLRErrorListener} dispatches all calls to a
collection of delegate listeners. This reduces the effort required to support multiple
listeners.

@author Sam Harwell
runtime/Java/src/org/antlr/v4/runtime/ProxyErrorListener.java