* module/ice-9/annotate.scm (deannotate/source-properties): Version of
deannotate that sets source properties on the resulting expressions.
* module/ice-9/syncase.scm (sc-macro, syncase): Annotate expressions
before they go into syncase, and deannotate/source-properties when they
come out. The upshot is that syncase now understands source
information, yay!
* module/ice-9/annotate.scm (<annotation>): Slightly more concise
printing.
(annotate): Don't create annotations if we have no source info.
* module/ice-9/psyntax.scm (annotation?): Remove this definition, as we
now provide annotation support.
* module/ice-9/psyntax-pp.scm: Regenerated.
* module/ice-9/syncase.scm: Use (ice-9 annotate).
* module/language/scheme/expand.scm (eval-when): Define the eval-when
transformer.
Moved ice-9/ and oop/ under module/, with the idea being that we have
only scheme under module/. Adjusted configure.in and Makefile.am
appropriately. Put oop/ at the end of the compilation order.
