Update irbuild-weakref.test

Author: BobTheBuidler

mypyc/test-data/irbuild-weakref.test

@@ -1,6 +1,20 @@
 [case testWeakrefRef]
 from typing import Any, Callable
 from weakref import ref
+def f(x: object) -> object:
+    return ref(x)
+
+[out]
+def f(x):
+    x :: object
+    r0 :: object
+L0:
+    r0 = PyWeakref_NewRef(x, NULL)
+    return r0
+
+[case testWeakrefRefCallback]
+from typing import Any, Callable
+from weakref import ref
 def f(x: object, cb: Callable[[object], Any]) -> object:
     return ref(x, cb)
 
@@ -15,6 +29,20 @@ L0:
 [case testWeakrefProxy]
 from typing import Any, Callable
 from weakref import proxy
+def f(x: object) -> object:
+    return proxy(x)
+
+[out]
+def f(x):
+    x :: object
+    r0 :: object
+L0:
+    r0 = PyWeakref_NewProxy(x, NULL)
+    return r0
+
+[case testWeakrefProxyCallback]
+from typing import Any, Callable
+from weakref import proxy
 def f(x: object, cb: Callable[[object], Any]) -> object:
     return proxy(x, cb)