bpo-41746: Add type information to asdl_seq objects (GH-22223)
* Add new capability to the PEG parser to type variable assignments. For instance:
```
| a[asdl_stmt_seq*]=';'.small_stmt+ [';'] NEWLINE { a }
```
* Add new sequence types from the asdl definition (automatically generated)
* Make `asdl_seq` type a generic aliasing pointer type.
* Create a new `asdl_generic_seq` for the generic case using `void*`.
* The old `asdl_seq_GET`/`ast_seq_SET` macros now are typed.
* New `asdl_seq_GET_UNTYPED`/`ast_seq_SET_UNTYPED` macros for dealing with generic sequences.
* Changes all possible `asdl_seq` types to use specific versions everywhere.diff --git a/Include/ast.h b/Include/ast.h
index de42a3b..434ee18 100644
--- a/Include/ast.h
+++ b/Include/ast.h
@@ -15,7 +15,7 @@
/* Return the borrowed reference to the first literal string in the
sequence of statements or NULL if it doesn't start from a literal string.
Doesn't set exception. */
-PyAPI_FUNC(PyObject *) _PyAST_GetDocString(asdl_seq *);
+PyAPI_FUNC(PyObject *) _PyAST_GetDocString(asdl_stmt_seq *);
#ifdef __cplusplus
}