Deprecate QLocale::Language entries that no locale data relates to

These are languages for which CLDR does not even recognize the claimed
language code (three-letter codes except for bh = Bihari, which might
be an old name for bho = Bhojpuri, which CLDR does give, but provides
no locale data using it).

[ChangeLog][QtCore][QLocale::Language] Many obsolete language names
are now deprecated in preparation for removal at Qt 6.0. No data has
been available for any locale using these languages since CLDR v29 (at
least; Qt now uses v37).

Task-number: QTBUG-84669
Change-Id: I2bf2d49211ade7cc511277f35fb1a247e7048b31
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
(cherry picked from commit 2575a8ced39b607ed320ed230c83119eaad4b33b)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

3 files changed, 144 insertions, 96 deletions

diff --git a/src/corelib/text/qlocale.h b/src/corelib/text/qlocale.h
index c1c3bd396b..066a40c570 100644
--- a/src/corelib/text/qlocale.h
+++ b/src/corelib/text/qlocale.h
@@ -93,7 +93,9 @@ public:
         Basque = 14,
         Bengali = 15,
         Dzongkha = 16,
-        Bihari = 17,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Bihari Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 17,
+#endif
         Bislama = 18,
         Breton = 19,
         Bulgarian = 20,
@@ -326,7 +328,9 @@ public:
         Nuer = 247,
         Sakha = 248,
         Sangu = 249,
-        CongoSwahili = 250,
+#if QT_DEPRECATED_SINCE(5, 15)
+        CongoSwahili Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 250,
+#endif
         Tasawaq = 251,
         Vai = 252,
         Walser = 253,
@@ -346,47 +350,69 @@ public:
         Bamun = 267,
         BatakToba = 268,
         Buginese = 269,
-        Buhid = 270,
-        Carian = 271,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Buhid Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 270,
+        Carian Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 271,
+#endif
         Chakma = 272,
-        ClassicalMandaic = 273,
+#if QT_DEPRECATED_SINCE(5, 15)
+        ClassicalMandaic Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 273,
+#endif
         Coptic = 274,
         Dogri = 275,
-        EasternCham = 276,
-        EasternKayah = 277,
-        Etruscan = 278,
+#if QT_DEPRECATED_SINCE(5, 15)
+        EasternCham Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 276,
+        EasternKayah Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 277,
+        Etruscan Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 278,
+#endif
         Gothic = 279,
-        Hanunoo = 280,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Hanunoo Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 280,
+#endif
         Ingush = 281,
-        LargeFloweryMiao = 282,
-        Lepcha = 283,
-        Limbu = 284,
-        Lisu = 285,
-        Lu = 286,
-        Lycian = 287,
-        Lydian = 288,
+#if QT_DEPRECATED_SINCE(5, 15)
+        LargeFloweryMiao Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 282,
+        Lepcha Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 283,
+        Limbu Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 284,
+        Lisu Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 285,
+        Lu Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 286,
+        Lycian Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 287,
+        Lydian Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 288,
+#endif
         Mandingo = 289,
         Manipuri = 290,
-        Meroitic = 291,
-        NorthernThai = 292,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Meroitic Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 291,
+        NorthernThai Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 292,
+#endif
         OldIrish = 293,
         OldNorse = 294,
         OldPersian = 295,
-        OldTurkish = 296,
+#if QT_DEPRECATED_SINCE(5, 15)
+        OldTurkish Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 296,
+#endif
         Pahlavi = 297,
-        Parthian = 298,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Parthian Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 298,
+#endif
         Phoenician = 299,
-        PrakritLanguage = 300,
-        Rejang = 301,
-        Sabaean = 302,
-        Samaritan = 303,
+#if QT_DEPRECATED_SINCE(5, 15)
+        PrakritLanguage Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 300,
+        Rejang Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 301,
+        Sabaean Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 302,
+        Samaritan Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 303,
+#endif
         Santali = 304,
         Saurashtra = 305,
-        Sora = 306,
-        Sylheti = 307,
-        Tagbanwa = 308,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Sora Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 306,
+        Sylheti Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 307,
+        Tagbanwa Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 308,
+#endif
         TaiDam = 309,
-        TaiNua = 310,
+#if QT_DEPRECATED_SINCE(5, 15)
+        TaiNua Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 310,
+#endif
         Ugaritic = 311,
         Akoose = 312,
         Lakota = 313,
@@ -405,37 +431,57 @@ public:
         InariSami = 326,
         SkoltSami = 327,
         Warlpiri = 328,
-        ManichaeanMiddlePersian = 329,
+#if QT_DEPRECATED_SINCE(5, 15)
+        ManichaeanMiddlePersian Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 329,
+#endif
         Mende = 330,
-        AncientNorthArabian = 331,
-        LinearA = 332,
-        HmongNjua = 333,
-        Ho = 334,
+#if QT_DEPRECATED_SINCE(5, 15)
+        AncientNorthArabian Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 331,
+        LinearA Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 332,
+        HmongNjua Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 333,
+        Ho Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 334,
+#endif
         Lezghian = 335,
-        Bassa = 336,
-        Mono = 337,
-        TedimChin = 338,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Bassa Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 336,
+        Mono Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 337,
+        TedimChin Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 338,
+#endif
         Maithili = 339,
-        Ahom = 340,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Ahom Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 340,
+#endif
         AmericanSignLanguage = 341,
-        ArdhamagadhiPrakrit = 342,
+#if QT_DEPRECATED_SINCE(5, 15)
+        ArdhamagadhiPrakrit Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 342,
+#endif
         Bhojpuri = 343,
-        HieroglyphicLuwian = 344,
+#if QT_DEPRECATED_SINCE(5, 15)
+        HieroglyphicLuwian Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 344,
+#endif
         LiteraryChinese = 345,
         Mazanderani = 346,
-        Mru = 347,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Mru Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 347,
+#endif
         Newari = 348,
         NorthernLuri = 349,
         Palauan = 350,
         Papiamento = 351,
-        Saraiki = 352,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Saraiki Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 352,
+#endif
         TokelauLanguage = 353,
         TokPisin = 354,
         TuvaluLanguage = 355,
-        UncodedLanguages = 356,
+#if QT_DEPRECATED_SINCE(5, 15)
+        UncodedLanguages Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 356,
+#endif
         Cantonese = 357,
         Osage = 358,
-        Tangut = 359,
+#if QT_DEPRECATED_SINCE(5, 15)
+        Tangut Q_DECL_ENUMERATOR_DEPRECATED_X("No locale data for this language") = 359,
+#endif
         Ido = 360,
         Lojban = 361,
         Sicilian = 362,
diff --git a/src/corelib/text/qlocale.qdoc b/src/corelib/text/qlocale.qdoc
index fc60d7e154..d9cb5ce6e8 100644
--- a/src/corelib/text/qlocale.qdoc
+++ b/src/corelib/text/qlocale.qdoc
@@ -111,7 +111,7 @@
     \value Afar
     \value Afrikaans
     \value Aghem
-    \value Ahom Since Qt 5.7
+    \value Ahom Obsolete, no locale data available
     \value Akan
     \value Akkadian Since Qt 5.1
     \value Akoose Since Qt 5.3
@@ -120,11 +120,11 @@
     \value Amharic
     \value AncientEgyptian Since Qt 5.1
     \value AncientGreek Since Qt 5.1
-    \value AncientNorthArabian Since Qt 5.5
+    \value AncientNorthArabian Obsolete, no locale data available
     \value Arabic
     \value Aragonese Since Qt 5.1
     \value Aramaic Since Qt 5.1
-    \value ArdhamagadhiPrakrit Since Qt 5.7
+    \value ArdhamagadhiPrakrit Obsolete, no locale data available
     \value Armenian
     \value Assamese
     \value Asturian
@@ -141,7 +141,7 @@
     \value Basaa
     \value Bashkir
     \value Basque
-    \value Bassa Since Qt 5.5
+    \value Bassa Obsolete, no locale data available
     \value BatakToba Since Qt 5.1
     \value Belarusian
     \value Bemba
@@ -149,20 +149,20 @@
     \value Bengali
     \value Bhojpuri Since Qt 5.7
     \value Bhutani Obsolete, please use Dzongkha
-    \value Bihari
+    \value Bihari Obsolete, no locale data available
     \value Bislama
     \value Blin
     \value Bodo
     \value Bosnian
     \value Breton
     \value Buginese Since Qt 5.1
-    \value Buhid Since Qt 5.1
+    \value Buhid Obsolete, no locale data available
     \value Bulgarian
     \value Burmese
     \value Byelorussian Obsolete, please use Belarusian
     \value Cambodian Obsolete, please use Khmer
     \value Cantonese Since Qt 5.7
-    \value Carian Since Qt 5.1
+    \value Carian Obsolete, no locale data available
     \value Catalan
     \value Cebuano Since Qt 5.14
     \value CentralKurdish Since Qt 5.5
@@ -177,9 +177,9 @@
     \value Chinese (Mandarin)
     \value Church
     \value Chuvash
-    \value ClassicalMandaic Since Qt 5.1
+    \value ClassicalMandaic Obsolete, no locale data available
     \value Colognian
-    \value CongoSwahili
+    \value CongoSwahili Obsolete, no locale data available
     \value Coptic Since Qt 5.1
     \value Cornish
     \value Corsican
@@ -192,14 +192,14 @@
     \value Duala
     \value Dutch
     \value Dzongkha
-    \value EasternCham Since Qt 5.1
-    \value EasternKayah Since Qt 5.1
+    \value EasternCham Obsolete, no locale data available
+    \value EasternKayah Obsolete, no locale data available
     \value Embu
     \value English
     \value Erzya Since Qt 5.14
     \value Esperanto
     \value Estonian
-    \value Etruscan Since Qt 5.1
+    \value Etruscan Obsolete, no locale data available
     \value Ewe
     \value Ewondo
     \value Faroese
@@ -224,16 +224,16 @@
     \value Gujarati
     \value Gusii
     \value Haitian
-    \value Hanunoo Since Qt 5.1
+    \value Hanunoo Obsolete, no locale data available
     \value Hausa
     \value Hawaiian
     \value Hebrew
     \value Herero
-    \value HieroglyphicLuwian Since Qt 5.7
+    \value HieroglyphicLuwian Obsolete, no locale data available
     \value Hindi
     \value HiriMotu
-    \value HmongNjua Since Qt 5.5
-    \value Ho Since Qt 5.5
+    \value HmongNjua Obsolete, no locale data available
+    \value Ho Obsolete, no locale data available
     \value Hungarian
     \value Icelandic
     \value Ido Since Qt 5.12
@@ -281,16 +281,16 @@
     \value Lakota Since Qt 5.3
     \value Langi
     \value Lao
-    \value LargeFloweryMiao Since Qt 5.1
+    \value LargeFloweryMiao Obsolete, no locale data available
     \value Latin
     \value Latvian
-    \value Lepcha Since Qt 5.1
+    \value Lepcha Obsolete, no locale data available
     \value Lezghian Since Qt 5.5
     \value Limburgish
-    \value Limbu Since Qt 5.1
-    \value LinearA Since Qt 5.5
+    \value Limbu Obsolete, no locale data available
+    \value LinearA Obsolete, no locale data available
     \value Lingala
-    \value Lisu Since Qt 5.1
+    \value Lisu Obsolete, no locale data available
     \value LiteraryChinese Since Qt 5.7
     \value Lithuanian
     \value Lojban Since Qt 5.12
@@ -299,11 +299,11 @@
     \value LubaKatanga
     \value LuleSami Since Qt 5.5
     \value Luo
-    \value Lu Since Qt 5.1
+    \value Lu Obsolete, no locale data available
     \value Luxembourgish
     \value Luyia
-    \value Lycian Since Qt 5.1
-    \value Lydian Since Qt 5.1
+    \value Lycian Obsolete, no locale data available
+    \value Lydian Obsolete, no locale data available
     \value Macedonian
     \value Machame
     \value Maithili Since Qt 5.5
@@ -314,7 +314,7 @@
     \value Malayalam
     \value Maltese
     \value Mandingo Since Qt 5.1
-    \value ManichaeanMiddlePersian Since Qt 5.5
+    \value ManichaeanMiddlePersian Obsolete, no locale data available
     \value Manipuri Since Qt 5.1
     \value Manx
     \value Maori
@@ -324,15 +324,15 @@
     \value Masai
     \value Mazanderani Since Qt 5.7
     \value Mende Since Qt 5.5
-    \value Meroitic Since Qt 5.1
+    \value Meroitic Obsolete, no locale data available
     \value Meru
     \value Meta
     \value Mohawk Since Qt 5.5
     \value Moldavian Obsolete, please use Romanian
     \value Mongolian
-    \value Mono Since Qt 5.5
+    \value Mono Obsolete, no locale data available
     \value Morisyen
-    \value Mru Since Qt 5.7
+    \value Mru Obsolete, no locale data available
     \value Mundang
     \value Muscogee Since Qt 5.14
     \value Nama
@@ -347,7 +347,7 @@
     \value NorthernLuri Since Qt 5.7
     \value NorthernSami
     \value NorthernSotho
-    \value NorthernThai Since Qt 5.1
+    \value NorthernThai Obsolete, no locale data available
     \value NorthNdebele
     \value NorwegianBokmal same as Norwegian
     \value NorwegianNynorsk
@@ -360,7 +360,7 @@
     \value OldIrish Since Qt 5.1
     \value OldNorse Since Qt 5.1
     \value OldPersian Since Qt 5.1
-    \value OldTurkish Since Qt 5.1
+    \value OldTurkish Obsolete, no locale data available
     \value Oriya
     \value Oromo
     \value Osage Since Qt 5.7
@@ -369,17 +369,17 @@
     \value Palauan Since Qt 5.7
     \value Pali
     \value Papiamento Since Qt 5.7
-    \value Parthian Since Qt 5.1
+    \value Parthian Obsolete, no locale data available
     \value Pashto
     \value Persian
     \value Phoenician Since Qt 5.1
     \value Polish
     \value Portuguese
-    \value PrakritLanguage Since Qt 5.1
+    \value PrakritLanguage Obsolete, no locale data available
     \value Prussian Since Qt 5.5
     \value Punjabi
     \value Quechua
-    \value Rejang Since Qt 5.1
+    \value Rejang Obsolete, no locale data available
     \value RhaetoRomance Obsolete, please use Romansh
     \value Romanian
     \value Romansh
@@ -387,17 +387,17 @@
     \value Rundi
     \value Russian
     \value Rwa
-    \value Sabaean Since Qt 5.1
+    \value Sabaean Obsolete, no locale data available
     \value Saho
     \value Sakha
-    \value Samaritan Since Qt 5.1
+    \value Samaritan Obsolete, no locale data available
     \value Samburu
     \value Samoan
     \value Sango
     \value Sangu
     \value Sanskrit
     \value Santali Since Qt 5.1
-    \value Saraiki Since Qt 5.7
+    \value Saraiki Obsolete, no locale data available
     \value Sardinian
     \value Saurashtra Since Qt 5.1
     \value Sena
@@ -416,7 +416,7 @@
     \value Slovenian
     \value Soga
     \value Somali
-    \value Sora Since Qt 5.1
+    \value Sora Obsolete, no locale data available
     \value SouthernKurdish Since Qt 5.12
     \value SouthernSami Since Qt 5.5
     \value SouthernSotho
@@ -428,22 +428,22 @@
     \value Swati
     \value Swedish
     \value SwissGerman
-    \value Sylheti Since Qt 5.1
+    \value Sylheti Obsolete, no locale data available
     \value Syriac
     \value Tachelhit
     \value Tagalog Obsolete, please use Filipino
-    \value Tagbanwa Since Qt 5.1
+    \value Tagbanwa Obsolete, no locale data available
     \value Tahitian
     \value TaiDam Since Qt 5.1
-    \value TaiNua Since Qt 5.1
+    \value TaiNua Obsolete, no locale data available
     \value Taita
     \value Tajik
     \value Tamil
-    \value Tangut Since Qt 5.7
+    \value Tangut Obsolete, no locale data available
     \value Taroko
     \value Tasawaq
     \value Tatar
-    \value TedimChin Since Qt 5.5
+    \value TedimChin Obsolete, no locale data available
     \value Telugu
     \value Teso
     \value Thai
@@ -464,7 +464,7 @@
     \value Uighur
     \value Uigur Obsolete, please use Uighur
     \value Ukrainian
-    \value UncodedLanguages Since Qt 5.7
+    \value UncodedLanguages Obsolete, no locale data available
     \value UpperSorbian Since Qt 5.5
     \value Urdu
     \value Uzbek
diff --git a/tests/auto/corelib/text/qlocale/tst_qlocale.cpp b/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
index 62654adc6a..1afbc169a7 100644
--- a/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
+++ b/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
@@ -2779,13 +2779,23 @@ void tst_QLocale::textDirection_data()
         bool rightToLeft = false;
         switch (language) {
         // based on likelySubtags for RTL scripts
-        case QLocale::AncientGreek:
+#if QT_DEPRECATED_SINCE(5, 15)
         case QLocale::AncientNorthArabian:
+        case QLocale::ClassicalMandaic:
+        case QLocale::Lydian:
+        case QLocale::ManichaeanMiddlePersian:
+        case QLocale::Meroitic:
+        case QLocale::OldTurkish:
+        case QLocale::Parthian:
+        case QLocale::PrakritLanguage:
+        case QLocale::Sabaean:
+        case QLocale::Samaritan:
+#endif
+        case QLocale::AncientGreek:
         case QLocale::Arabic:
         case QLocale::Aramaic:
         case QLocale::Avestan:
         case QLocale::CentralKurdish:
-        case QLocale::ClassicalMandaic:
         case QLocale::Divehi:
 //        case QLocale::Fulah:
 //        case QLocale::Hausa:
@@ -2793,23 +2803,15 @@ void tst_QLocale::textDirection_data()
 //        case QLocale::Hungarian:
         case QLocale::Kashmiri:
 //        case QLocale::Kurdish:
-        case QLocale::Lydian:
         case QLocale::Mandingo:
-        case QLocale::ManichaeanMiddlePersian:
         case QLocale::Mazanderani:
         case QLocale::Mende:
-        case QLocale::Meroitic:
         case QLocale::Nko:
         case QLocale::NorthernLuri:
-        case QLocale::OldTurkish:
         case QLocale::Pahlavi:
-        case QLocale::Parthian:
         case QLocale::Pashto:
         case QLocale::Persian:
         case QLocale::Phoenician:
-        case QLocale::PrakritLanguage:
-        case QLocale::Sabaean:
-        case QLocale::Samaritan:
         case QLocale::Sindhi:
         case QLocale::SouthernKurdish:
         case QLocale::Syriac: