* test-suite/tests/bytevectors.test, test-suite/tests/keywords.test,
test-suite/tests/procprop.test, test-suite/tests/srfi-35.test,
test-suite/tests/srfi-88.test: Add "coding:" cookie on the first line.
* module/srfi/srfi-35.scm (%make-condition-type): New procedure.
(make-condition-type, make-compound-condition-type): Use it.
* test-suite/tests/srfi-35.test ("condition
types")["struct-vtable-name"]: New test.