chore: move constant creation out of loop (#6836)

compiler/noirc_evaluator/src/ssa/opt/resolve_is_unconstrained.rs

@@ -39,16 +39,15 @@ impl Function {
             }
         }
 
+        let is_unconstrained = matches!(self.runtime(), RuntimeType::Brillig(_)).into();
+        let is_within_unconstrained = self.dfg.make_constant(is_unconstrained, NumericType::bool());
         for instruction_id in is_unconstrained_calls {
             let call_returns = self.dfg.instruction_results(instruction_id);
             let original_return_id = call_returns[0];
 
             // We replace the result with a fresh id. This will be unused, so the DIE pass will remove the leftover intrinsic call.
             self.dfg.replace_result(instruction_id, original_return_id);
 
-            let is_unconstrained = matches!(self.runtime(), RuntimeType::Brillig(_)).into();
-            let is_within_unconstrained =
-                self.dfg.make_constant(is_unconstrained, NumericType::bool());
             // Replace all uses of the original return value with the constant
             self.dfg.set_value_from_id(original_return_id, is_within_unconstrained);
         }