Changed paths:
M books/kestrel/remora/abstract-syntax-matching-operations.lisp
M books/kestrel/remora/abstract-syntax-structurals.lisp
M books/kestrel/remora/type-checking.lisp
M books/kestrel/remora/unique-names.lisp
M books/kestrel/remora/value-printing.lisp
Log Message:
-----------
Incorporate AC's suggestions. Mainly adding type checking before evaluation in
eval-file. Required some extensions to enable case that previously worked to still again.