jj_consume_token(CLOSE);
jj_consume_token(SEMICOLON);
Location location = toLocation(t);
String name = s.image;
InterfaceStatement intrface = flowPeek().getInterfaceStatement();
InterfaceMethodStatement method = new InterfaceMethodStatement(location, intrface, name, t.document, parameters);
if (intrface.lookupDeclaration(name) == null) {
intrface.declare(method);
} else {
error(location, "Entity '" + name + "' is already declared");
}