Improved the tests so that they compile cleanly, and so that warnings at compile time are caught appropriately.
Improved the tests so that they compile cleanly, and so that
warnings at compile time are caught appropriately.

clasp-developers/SICL,clasp-developers/SICL,vtomole/SICL,clasp-developers/SICL,vtomole/SICL,clasp-developers/SICL,vtomole/SICL,vtomole/SICL