public void grammarError(ErrorType etype,
							 String fileName,
							 org.antlr.runtime.Token token,
							 Object... args)
	{
        ANTLRMessage msg = new GrammarSemanticsMessage(etype,fileName,token,args);
		emit(etype, msg);

	}
Raise a predefined message with some number of parameters for the StringTemplate but for which there
is no location information possible.
@param errorType The Message Descriptor
@param args The arguments to pass to the StringTemplate
tool/src/org/antlr/v4/tool/ErrorManager.java