public String[] getTokenTypesAsTargetLabels(Grammar g, int[] ttypes) {
		String[] labels = new String[ttypes.length];
		for (int i=0; i<ttypes.length; i++) {
			labels[i] = getTokenTypeAsTargetLabel(g, ttypes[i]);
		}
		return labels;
	}
Get a meaningful name for a token type useful during code generation.
 Literals without associated names are converted to the string equivalent
 of their integer values. Used to generate x==ID and x==34 type comparisons
 etc...  Essentially we are looking for the most obvious way to refer
 to a token type in the generated code.
tool/src/org/antlr/v4/codegen/Target.java