@uml Construct a new instance of {@link TagChunk} using the specified tag and no label. * @param tag The tag, which should be the name of a parser rule or token type.
@exception IllegalArgumentException if {@code tag} is {@code null} or empty.
See Implementation
@uml Construct a new instance of {@link TagChunk} using the specified tag and no label. * @param tag The tag, which should be the name of a parser rule or token type.
@exception IllegalArgumentException if {@code tag} is {@code null} or empty.