Major Description
DelimitedBoostTokenFilter expects tokens of the form `token` or `token|number` and throws a NumberFormatException if the `number` part can't be parsed. This can cause test failures when we build random chains and throw random data through them.
We can either exclude DelimiteBoostTokenFilter when building a random analyzer, or add a flag to ignore badly-formed tokens. I lean towards doing the former, as I don't really want to make leniency the default here.