vm.class() only for non-static types

vm/src/stdlib/os.rs

@@ -636,7 +636,7 @@ mod _os {
     #[pyimpl(with(PyStructSequence))]
     impl StatResult {
         pub(super) fn into_obj(self, vm: &VirtualMachine) -> PyObjectRef {
-            self.into_struct_sequence(vm, vm.class(super::MODULE_NAME, "stat_result"))
+            self.into_struct_sequence(vm, StatResult::static_type().clone())
                 .unwrap()
                 .into_object()
         }
@@ -1745,7 +1745,7 @@ mod posix {
     #[pyimpl(with(PyStructSequence))]
     impl UnameResult {
         fn into_obj(self, vm: &VirtualMachine) -> PyObjectRef {
-            self.into_struct_sequence(vm, vm.class(super::MODULE_NAME, "uname_result"))
+            self.into_struct_sequence(vm, UnameResult::static_type().clone())
                 .unwrap()
                 .into_object()
         }

vm/src/stdlib/time_module.rs

@@ -12,7 +12,8 @@ use crate::builtins::pytype::PyTypeRef;
 use crate::builtins::tuple::PyTupleRef;
 use crate::function::OptionalArg;
 use crate::pyobject::{
-    BorrowValue, Either, PyClassImpl, PyObjectRef, PyResult, PyStructSequence, TryFromObject,
+    BorrowValue, Either, PyClassImpl, PyObjectRef, PyResult, PyStructSequence, StaticType,
+    TryFromObject,
 };
 use crate::vm::VirtualMachine;
 
@@ -218,7 +219,7 @@ impl PyStructTime {
     }
 
     fn into_obj(self, vm: &VirtualMachine) -> PyObjectRef {
-        self.into_struct_sequence(vm, vm.class("time", "struct_time"))
+        self.into_struct_sequence(vm, PyStructTime::static_type().clone())
             .unwrap()
             .into_object()
     }