Address pr review

src/compiler/backend/mod.rs

@@ -280,6 +280,7 @@ pub fn spirv_meta(module: &mut Module) -> Vec<(Option<String>, Vec<String>)> {
     //     }
     //     writeln!(spirv_asm).unwrap();
     // }
+    // spirv_asm
     ops
 }
 
@@ -540,7 +541,7 @@ pub fn compile_ast_ssa(
             }
         }
         None => {
-            let sym = ast.symbol().unwrap();
+            let sym = ast.symbol().expect("This must be a symbol");
             match match_number(&sym) {
                 Number::Int(i) => {
                     let key = format!("i32_{}", i);