Don't error when TYPEEXPAND-1 is passed a non-symbol/non-list.
Don't error when TYPEEXPAND-1 is passed a non-symbol/non-list.

This can happen a call to TYPEP is compiled with a constant type argument.
(TYPEP foo #<Built-In-Class SYMBOL>)

varjagg/Mezzano,varjagg/Mezzano,rvedam/Mezzano,froggey/Mezzano,rvedam/Mezzano,froggey/Mezzano