feat: new primitives for weakref.proxy

Author: BobTheBuidler

mypyc/primitives/weakref_ops.py

@@ -20,3 +20,20 @@
     c_function_name="PyWeakref_NewRef",
     error_kind=ERR_MAGIC,
 )
+
+new_proxy_op = function_op(
+    name="weakref.ProxyType",
+    arg_types=[object_rprimitive],
+    return_type=object_rprimitive,
+    c_function_name="PyWeakref_NewProxy",
+    extra_int_constants=[(0, pointer_rprimitive)],
+    error_kind=ERR_MAGIC,
+)
+
+new_proxy_with_callback_op = function_op(
+    name="weakref.ProxyType",
+    arg_types=[object_rprimitive, object_rprimitive],
+    return_type=object_rprimitive,
+    c_function_name="PyWeakref_NewProxy",
+    error_kind=ERR_MAGIC,
+)