Add _io._WindowsConsoleIO on Windows. Fixes #490

(cherry picked from commit e41945c)

fix conflicts for Add _io._WindowsConsoleIO on Windows

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/PythonBuiltinClassType.java

@@ -336,6 +336,7 @@ public enum PythonBuiltinClassType implements TruffleObject {
     PStringIO("StringIO", "_io", Flags.PUBLIC_BASE_WDICT),
     PBytesIO("BytesIO", "_io", Flags.PUBLIC_BASE_WDICT),
     PBytesIOBuf("_BytesIOBuffer", "_io", Flags.PRIVATE_BASE_WODICT),
+    PWindowsConsoleIO("_WindowsConsoleIO", "_io", Flags.PRIVATE_BASE_WODICT),
 
     PStatResult("stat_result", "os", Flags.PUBLIC_DERIVED_WODICT, TUPLE_M_FLAGS),
     PStatvfsResult("statvfs_result", "os", Flags.PUBLIC_DERIVED_WODICT, TUPLE_M_FLAGS),

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/io/IOModuleBuiltins.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
@@ -52,6 +52,7 @@
 import static com.oracle.graal.python.builtins.PythonBuiltinClassType.PIncrementalNewlineDecoder;
 import static com.oracle.graal.python.builtins.PythonBuiltinClassType.PTextIOWrapper;
 import static com.oracle.graal.python.builtins.PythonBuiltinClassType.ValueError;
+import static com.oracle.graal.python.builtins.PythonBuiltinClassType.PWindowsConsoleIO;
 import static com.oracle.graal.python.builtins.modules.WarningsModuleBuiltins.T_WARN;
 import static com.oracle.graal.python.builtins.modules.io.BufferedIOUtil.SEEK_CUR;
 import static com.oracle.graal.python.builtins.modules.io.BufferedIOUtil.SEEK_END;
@@ -144,6 +145,7 @@ public void initialize(Python3Core core) {
         addBuiltinConstant("_warn", core.lookupBuiltinModule(T__WARNINGS).getAttribute(T_WARN));
         if (PythonOS.getPythonOS() == PythonOS.PLATFORM_WIN32) {
             addBuiltinConstant("_os", core.lookupBuiltinModule(T_NT));
+            addBuiltinConstant("_WindowsConsoleIO", PWindowsConsoleIO);
         } else {
             addBuiltinConstant("_os", core.lookupBuiltinModule(T_POSIX));
         }