Use PyMem_* for keys allocation

Author: DinoV

Diff for: Objects/dictobject.c

@@ -262,7 +262,7 @@ _PyDict_ClearFreeList(PyInterpreterState *interp)
         PyObject_GC_Del(op);
     }
     while (state->keys_numfree) {
-        PyObject_Free(state->keys_free_list[--state->keys_numfree]);
+        PyMem_Free(state->keys_free_list[--state->keys_numfree]);
     }
 #endif
 }
@@ -640,7 +640,7 @@ new_keys_object(PyInterpreterState *interp, uint8_t log2_size, bool unicode)
     else
 #endif
     {
-        dk = PyObject_Malloc(sizeof(PyDictKeysObject)
+        dk = PyMem_Malloc(sizeof(PyDictKeysObject)
                              + ((size_t)1 << log2_bytes)
                              + entry_size * usable);
         if (dk == NULL) {
@@ -697,7 +697,7 @@ free_keys_object(PyInterpreterState *interp, PyDictKeysObject *keys)
         return;
     }
 #endif
-    PyObject_Free(keys);
+    PyMem_Free(keys);
 }
 
 static inline PyDictValues*
@@ -798,7 +798,7 @@ clone_combined_dict_keys(PyDictObject *orig)
     assert(orig->ma_keys->dk_refcnt == 1);
 
     size_t keys_size = _PyDict_KeysSize(orig->ma_keys);
-    PyDictKeysObject *keys = PyObject_Malloc(keys_size);
+    PyDictKeysObject *keys = PyMem_Malloc(keys_size);
     if (keys == NULL) {
         PyErr_NoMemory();
         return NULL;
@@ -1568,7 +1568,7 @@ dictresize(PyInterpreterState *interp, PyDictObject *mp,
             else
 #endif
             {
-                PyObject_Free(oldkeys);
+                PyMem_Free(oldkeys);
             }
         }
     }