* libguile/srcprop.c (scm_set_source_properties_x): No need to treat
memoized code specially.
* test-suite/tests/srcprop.test ("set-source-property!")
("set-source-properties!"): Well, just throw 'unresolved on these for
now, because we need a few more things to land before these can be
fixed, or even considered.
* libguile/srcprop.c (scm_set_source_properties_x): Look for the special
source properties, save them off, and then construct a srcprops object
using them.