When a sequence of RE and/or SPACE characters in a minimum literal
is replaced by a single SPACE character, then the first
character is represented by a datachar possibly with an intrplch
property, and the other characters are represented by an intignch.
When:
The data character replaced another character
when a literal was interpreted: a SPACE character that replaced a
RE or SEPCHAR in an attribute value literal or an RE in a minimum
literal.