Fixes

src/capi/typeobject.cpp

@@ -3339,7 +3339,6 @@ template <ExceptionStyle S>
 static Box* tppProxyToTpCall(Box* self, CallRewriteArgs* rewrite_args, ArgPassSpec argspec, Box* arg1, Box* arg2,
                              Box* arg3, Box** args,
                              const std::vector<BoxedString*>* keyword_names) noexcept(S == CAPI) {
-    assert(0 && "check refcounting");
     ParamReceiveSpec paramspec(0, 0, true, true);
     if (!argspec.has_kwargs && argspec.num_keywords == 0) {
         paramspec.takes_kwargs = false;

src/runtime/objmodel.cpp

@@ -3063,7 +3063,6 @@ extern "C" bool nonzero(Box* obj) {
     }
 
     if (crewrite_args.isSuccessful()) {
-        assert(0 && "untested");
         RewriterVar* rtn = crewrite_args.getReturn(ReturnConvention::HAS_RETURN);
         RewriterVar* b = rewriter->call(false, (void*)nonzeroHelper, rtn);
         rtn->refConsumed();

src/runtime/set.cpp

@@ -48,7 +48,6 @@ public:
 
     static void dealloc(BoxedSetIterator* o) noexcept {
         PyObject_GC_UnTrack(o);
-        PyObject_ClearWeakRefs((PyObject*)o);
 
         Py_DECREF(o->s);
 
@@ -183,7 +182,7 @@ Box* setNew(Box* _cls, Box* container, BoxedDict* kwargs) {
 }
 
 static void setClearInternal(BoxedSet* self) {
-    ASSERT(isSubclass(self->cls, set_cls), "");
+    ASSERT(PyAnySet_Check(self), "");
 
     if (self->s.size()) {
         BoxedSet::Set tmp;

src/runtime/types.cpp

@@ -3158,7 +3158,7 @@ static Box* typeBases(Box* b, void*) {
     BoxedClass* type = static_cast<BoxedClass*>(b);
 
     assert(type->tp_bases);
-    return type->tp_bases;
+    return incref(type->tp_bases);
 }
 
 static void typeSetBases(Box* b, Box* v, void* c) {