fill in refcount information for APIs first documented in Python 2.5

Doc/api/refcounts.dat

@@ -382,6 +382,9 @@ PyFloat_FromString:PyObject*::+1:
 PyFloat_FromString:PyObject*:str:0:
 PyFloat_FromString:char**:pend:0:ignored
 
+PyFrozenSet_New:PyObject*::+1:
+PyFrozenSet_New:PyObject*:iterable:0:
+
 PyFunction_GetClosure:PyObject*::0:
 PyFunction_GetClosure:PyObject*:op:0:
 
@@ -485,6 +488,9 @@ PyInt_FromString:char*:str:0:
 PyInt_FromString:char**:pend:0:
 PyInt_FromString:int:base:0:
 
+PyInt_FromSsize_t:PyObject*::+1:
+PyInt_FromSsize_t:Py_ssize_t:ival::
+
 PyInt_GetMax:long:::
 
 PyInterpreterState_Clear:void:::
@@ -1138,6 +1144,9 @@ PySet_Discard:int:::
 PySet_Discard:PyObject*:set:0:
 PySet_Discard:PyObject*:key:-1:no effect if key not found
 
+PySet_New:PyObject*::+1:
+PySet_New:PyObject*:iterable:0:
+
 PySet_Pop:PyObject*::0:or returns NULL and raises KeyError if set is empty
 PySet_Pop:PyObject*:set:0: