bpo-29878: Add global instances of int for 0 and 1. (#852)

diff --git a/Objects/complexobject.c b/Objects/complexobject.c
index 5ebb504..9a416a8 100644
--- a/Objects/complexobject.c
+++ b/Objects/complexobject.c
@@ -936,7 +936,7 @@
 /*[clinic input]
 @classmethod
 complex.__new__ as complex_new
-    real as r: object(c_default="Py_False") = 0
+    real as r: object(c_default="_PyLong_Zero") = 0
     imag as i: object(c_default="NULL") = 0
 
 Create a complex number from a real part and an optional imaginary part.