bpo-24037: Add Argument Clinic converter `bool(accept={int})`. (#485)

diff --git a/Modules/_io/_iomodule.c b/Modules/_io/_iomodule.c
index f4d3cbd..8f0b72a 100644
--- a/Modules/_io/_iomodule.c
+++ b/Modules/_io/_iomodule.c
@@ -105,7 +105,7 @@
     encoding: str(accept={str, NoneType}) = NULL
     errors: str(accept={str, NoneType}) = NULL
     newline: str(accept={str, NoneType}) = NULL
-    closefd: int(c_default="1") = True
+    closefd: bool(accept={int}) = True
     opener: object = None
 
 Open file and return a stream.  Raise IOError upon failure.
@@ -232,7 +232,7 @@
 _io_open_impl(PyObject *module, PyObject *file, const char *mode,
               int buffering, const char *encoding, const char *errors,
               const char *newline, int closefd, PyObject *opener)
-/*[clinic end generated code: output=aefafc4ce2b46dc0 input=f4e1ca75223987bc]*/
+/*[clinic end generated code: output=aefafc4ce2b46dc0 input=7f81b2a1d3b02344]*/
 {
     unsigned i;
 
diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
index 67d5e3e..b99506f 100644
--- a/Modules/_io/fileio.c
+++ b/Modules/_io/fileio.c
@@ -207,7 +207,7 @@
 _io.FileIO.__init__
     file as nameobj: object
     mode: str = "r"
-    closefd: int(c_default="1") = True
+    closefd: bool(accept={int}) = True
     opener: object = None
 
 Open a file.
@@ -228,7 +228,7 @@
 static int
 _io_FileIO___init___impl(fileio *self, PyObject *nameobj, const char *mode,
                          int closefd, PyObject *opener)
-/*[clinic end generated code: output=23413f68e6484bbd input=193164e293d6c097]*/
+/*[clinic end generated code: output=23413f68e6484bbd input=1596c9157a042a39]*/
 {
 #ifdef MS_WINDOWS
     Py_UNICODE *widename = NULL;
diff --git a/Modules/_io/textio.c b/Modules/_io/textio.c
index 1d32d53..4133bf3 100644
--- a/Modules/_io/textio.c
+++ b/Modules/_io/textio.c
@@ -511,13 +511,13 @@
 /*[clinic input]
 _io.IncrementalNewlineDecoder.decode
     input: object
-    final: int(c_default="0") = False
+    final: bool(accept={int}) = False
 [clinic start generated code]*/
 
 static PyObject *
 _io_IncrementalNewlineDecoder_decode_impl(nldecoder_object *self,
                                           PyObject *input, int final)
-/*[clinic end generated code: output=0d486755bb37a66e input=d65677385bfd6827]*/
+/*[clinic end generated code: output=0d486755bb37a66e input=a4ea97f26372d866]*/
 {
     return _PyIncrementalNewlineDecoder_decode((PyObject *) self, input, final);
 }
@@ -792,8 +792,8 @@
     encoding: str(accept={str, NoneType}) = NULL
     errors: str(accept={str, NoneType}) = NULL
     newline: str(accept={str, NoneType}) = NULL
-    line_buffering: int(c_default="0") = False
-    write_through: int(c_default="0") = False
+    line_buffering: bool(accept={int}) = False
+    write_through: bool(accept={int}) = False
 
 Character and line based layer over a BufferedIOBase object, buffer.
 
@@ -830,7 +830,7 @@
                                 const char *encoding, const char *errors,
                                 const char *newline, int line_buffering,
                                 int write_through)
-/*[clinic end generated code: output=56a83402ce2a8381 input=3126cb3101a2c99b]*/
+/*[clinic end generated code: output=56a83402ce2a8381 input=598d10cc5f2ed7dd]*/
 {
     PyObject *raw, *codec_info = NULL;
     _PyIO_State *state = NULL;
diff --git a/Modules/_io/winconsoleio.c b/Modules/_io/winconsoleio.c
index 4d36bb5..4251c20 100644
--- a/Modules/_io/winconsoleio.c
+++ b/Modules/_io/winconsoleio.c
@@ -252,7 +252,7 @@
 _io._WindowsConsoleIO.__init__
     file as nameobj: object
     mode: str = "r"
-    closefd: int(c_default="1") = True
+    closefd: bool(accept={int}) = True
     opener: object = None
 
 Open a console buffer by file descriptor.
@@ -266,7 +266,7 @@
 _io__WindowsConsoleIO___init___impl(winconsoleio *self, PyObject *nameobj,
                                     const char *mode, int closefd,
                                     PyObject *opener)
-/*[clinic end generated code: output=3fd9cbcdd8d95429 input=61be39633a86f5d7]*/
+/*[clinic end generated code: output=3fd9cbcdd8d95429 input=06ae4b863c63244b]*/
 {
     const char *s;
     wchar_t *name = NULL;