[fine] Note about panics and error messages

fine/src/compiler.rs

@@ -177,6 +177,13 @@ impl<'a> Compiler<'a> {
     where
         T: Into<String>,
     {
+        // TODO: We should be looking for semantic errors and using *those*
+        //       as the panic description and only fall back to the provided
+        //       description if we can't find a semantic error. The idea is
+        //       that if the compiler got confused it *might* be because
+        //       there was actually a semantic error in the program and that
+        //       semantic error might be a better description of what is
+        //       wrong.
         let index = self.add_string(description.into());
         Instruction::Panic(index)
     }