* module/srfi/srfi-35.scm: Use `(ice-9 syncase)'.
(define-condition-type, condition): Rewritten using `syntax-rules'.
(compound-condition, condition-instantiation): New helper internal
macros. Thanks to Andy Wingo for his help!
* module/language/tree-il/compile-glil.scm (flatten): For applications in
"drop" context, allow the procedure to return unspecified values
(including 0 values).
* test-suite/tests/tree-il.test ("application"): Adapt test.
* module/srfi/srfi-18.scm (wrap): Clarify.
* test-suite/tests/srfi-18.test: Fix so that the expression importing
srfi-18 is expanded before the tests. However the tests are still
failing, something about 0-valued returns...
* module/srfi/srfi-69.scm: Move the macros up before the functions that
use them, so that the compiler can do its job.
(hash-table-walk): While it is true about what I said about R5RS
before, it seems that for R6 this will have to change. Anyway. In the
meantime, since the test suite checks that hash-table-walk procedures'
return values and number of return values are ignored, call that
procedure within a call-with-values.
* module/srfi/srfi-19.scm: Some parts of this code used a strange idiom,
`(values)', to indicate that a procedure did nothing. However, quoth
R5RS:
Except for continuations created by the `call-with-values'
procedure, all continuations take exactly one value.
Indeed the VM indicated this error. I reworked the code to avoid these
cases.
