Re: [sv-bc] Re: issue 324 for asymmetric casex

The case items in a case-inside statement syntactically subsume those
in a case statement, because an expression is a degenerate value range.

  open_range_list : statement_or_null
  open_value_range { , open_value_range } : statement_or_null
  value_range { , value_range } : statement_or_null
  expression { , expression } : statement_or_null

>This proposal allows only ranges in the case items.  This is incorrect.
>It is supposed to allow values, with x/z treated as wildcards.  That is
>the primary reason for adding this.  Ranges are just a further enhancement.
>Note that the sets for the inside operator allow values as well as
>ranges.

-- Brad