bpo-33738: Address review comments in GH #7477 (GH-7585)

Include/abstract.h

@@ -598,7 +598,7 @@ PyAPI_FUNC(PyObject *) PyObject_GetIter(PyObject *);
     ((obj)->ob_type->tp_iternext != NULL && \
      (obj)->ob_type->tp_iternext != &_PyObject_NextNotImplemented)
 #else
-PyAPI_FUNC(int) PyIter_Check(PyObject*);
+PyAPI_FUNC(int) PyIter_Check(PyObject *);
 #endif
 
 /* Takes an iterator object and calls its tp_iternext slot,

Include/pyerrors.h

@@ -142,9 +142,9 @@ PyAPI_FUNC(void) _PyErr_ChainExceptions(PyObject *, PyObject *, PyObject *);
 
 #ifndef Py_LIMITED_API
 #define PyExceptionClass_Name(x) \
-     ((char *)(((PyTypeObject*)(x))->tp_name))
+     ((char *)(((PyTypeObject *)(x))->tp_name))
 #else
-     PyAPI_FUNC(char *) PyExceptionClass_Name(PyObject*);
+     PyAPI_FUNC(const char *) PyExceptionClass_Name(PyObject *);
 #endif
 
 #define PyExceptionInstance_Class(x) ((PyObject*)((x)->ob_type))

Misc/NEWS.d/next/Core and Builtins/2018-06-07-18-34-19.bpo-33738.ODZS7a.rst

@@ -1,3 +1,4 @@
 Seven macro incompatibilities with the Limited API were fixed, and the
 macros PyIter_Check, PyIndex_Check and PyExceptionClass_Name were added as
-functions. A script for automatic macro checks was added.
+functions. The return type of PyExceptionClass_Name is "const char \*".
+A script for automatic macro checks was added.

Objects/abstract.c

@@ -1245,6 +1245,7 @@ PyNumber_Absolute(PyObject *o)
 }
 
 #undef PyIndex_Check
+
 int
 PyIndex_Check(PyObject *obj)
 {
@@ -2544,6 +2545,7 @@ PyObject_GetIter(PyObject *o)
 }
 
 #undef PyIter_Check
+
 int PyIter_Check(PyObject *obj)
 {
     return obj->ob_type->tp_iternext != NULL &&

Objects/exceptions.c

@@ -343,6 +343,7 @@ PyException_SetContext(PyObject *self, PyObject *context)
 }
 
 #undef PyExceptionClass_Name
+
 char *
 PyExceptionClass_Name(PyObject *ob)
 {