* Resent unknown-type reparsing changes could result in LVAR-TYPE
being #<UNKNOWN-TYPE RESTART> but _behaving_ as if it actually was
#<STRUCTURE-CLASSOID RESTART> -- make PRIMITIVE-TYPE reparse the type
if appropriate so that the right template can be found.
* This problem was masked on x86oids as they have %INSTANCE-REF arg
type *, whereas PPC had INSTANCE.