Added comment explaining why we don't use read-time evaluation and literals.
Added comment explaining why we don't use read-time evaluation and literals.

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