dev-python/typed-ast: fix Python 3.10 compat for 1.4.3

I'm absolutely convinced I committed this before like a year ago?

Closes: https://bugs.gentoo.org/874900
Signed-off-by: Sam James <sam@gentoo.org>

dev-python/typed-ast/files/typed-ast-1.4.3-python310.patch

@@ -0,0 +1,30 @@
+https://github.com/python/typed_ast/commit/123286721923ae8f3885dbfbad94d6ca940d5c96
+https://bugs.gentoo.org/874900
+
+From 123286721923ae8f3885dbfbad94d6ca940d5c96 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Miro=20Hron=C4=8Dok?= <miro@hroncok.cz>
+Date: Wed, 10 Nov 2021 19:15:50 +0100
+Subject: [PATCH] Define _PyUnicode_DecodeUnicodeEscape even on Python 3.6+
+ (#171)
+
+--- a/ast3/Python/ast.c
++++ b/ast3/Python/ast.c
+@@ -56,6 +56,8 @@ _PyBytes_DecodeEscape(const char *s,
+     return PyBytes_DecodeEscape(s, len, errors, unicode, recode_encoding);
+ }
+ 
++#endif
++
+ PyObject *
+ _PyUnicode_DecodeUnicodeEscape(const char *s,
+                                Py_ssize_t size,
+@@ -66,8 +68,6 @@ _PyUnicode_DecodeUnicodeEscape(const char *s,
+     return PyUnicode_DecodeUnicodeEscape(s, size, errors);
+ }
+ 
+-#endif
+-
+ static int validate_stmts(asdl_seq *);
+ static int validate_exprs(asdl_seq *, expr_context_ty, int);
+ static int validate_nonempty_seq(asdl_seq *, const char *, const char *);
+

dev-python/typed-ast/typed-ast-1.4.3-r1.ebuild

@@ -3,7 +3,7 @@
 
 EAPI=7
 
-PYTHON_COMPAT=( python3_{7..10} )
+PYTHON_COMPAT=( python3_{8..10} )
 inherit distutils-r1
 
 DESCRIPTION="Python typed-ast backported"
@@ -15,6 +15,10 @@ LICENSE="Apache-2.0 MIT"
 SLOT="0"
 KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-macos"
 
+PATCHES=(
+	"${FILESDIR}"/${P}-python310.patch
+)
+
 distutils_enable_tests pytest
 
 python_test() {