[mlocale] Avoid broken MLocale::localeScripts() code and adjust tests…

…. JB#52793

The locale script data seems removed from ICU in 2015 so
we need a reimplementation if there's any need for the method.
The method could be beneficial if there's wider use for the library
so made it just warns instead of total removal. But at the moment
the usage is quite thin in Sailfish side.

On non-ICU build this was defining the method but didn't have
an implementation. Made the method consistently defined now.

Disabled some related testing in ft_locales.

On testing side, also disabled @pinyinsearch collation which
didn't work and for which I didn't find any definitions.
Using that in real code would be making quite specific expectations
as it's not included in any documentation.

kk_Cyrl_KZ existence test removed. Deleted from ICU in 2015 CLDR 28
integration.

src/mlocale.cpp

@@ -2858,10 +2858,12 @@ void MLocalePrivate::fixFormattedNumberForRTL(QString *formattedNumber) const
     // make sure the result is not reordered again depending on
     // context (this assumes that the formats are all edited exactly
     // as they should appear in display order already!):
+#if 0 // non-functional
     if(q->localeScripts()[0] != "Arab" && q->localeScripts()[0] != "Hebr")
         return;
     formattedNumber->prepend(QChar(0x202A)); // LEFT-TO-RIGHT EMBEDDING
     formattedNumber->append(QChar(0x202C)); // POP DIRECTIONAL FORMATTING
+#endif
     return;
 }
 #endif
@@ -3815,11 +3817,13 @@ QString MLocale::joinStringList(const QStringList &texts) const
 {
     QStringList textsWithBidiMarkers;
     QString separator(QLatin1String(", "));
+#if 0 // non-functional
     if (localeScripts()[0] == QLatin1String("Arab"))
         separator = QString::fromUtf8("، "); // U+060C ARABIC COMMA + space
     else if (localeScripts().contains(QLatin1String("Hani"))) {
         separator = QString::fromUtf8("、"); // U+3001 IDEOGRAPHIC COMMA, no space
     }
+#endif
     foreach (const QString &text, texts) {
         if (MLocale::directionForText(text) == Qt::RightToLeft)
             // RIGHT-TO-LEFT EMBEDDING + text + POP DIRECTIONAL FORMATTING
@@ -4009,9 +4013,12 @@ QString MLocale::indexBucket(const QString &str) const
 }
 #endif
 
-#ifdef HAVE_ICU
 QStringList MLocale::localeScripts() const
 {
+    QStringList scripts;
+    qWarning() << "MLocale::localeScripts() missing proper implementation. Add if needed.";
+#if 0 // LocaleScript data removed from ICU, no point trying.
+#ifdef HAVE_ICU
     Q_D(const MLocale);
     UErrorCode status = U_ZERO_ERROR;
 
@@ -4028,7 +4035,6 @@ QStringList MLocale::localeScripts() const
                           << u_errorName(status);
     }
 
-    QStringList scripts;
     qint32 len;
     const UChar *val;
 
@@ -4037,14 +4043,16 @@ QStringList MLocale::localeScripts() const
             scripts << QString::fromUtf16(val, len);
     }
     ures_close(res);
+#endif
+#endif
+
     if (scripts.isEmpty())
         // "Zyyy" Code for undetermined script,
         // see http://www.unicode.org/iso15924/iso15924-codes.html
         scripts << "Zyyy";
 
     return scripts;
 }
-#endif
 
 void MLocale::copyCatalogsFrom(const MLocale &other)
 {

tests/ft_locales/ft_locales.cpp

@@ -887,10 +887,14 @@ void Ft_Locales::testMLocaleLocaleScripts_data()
 
 void Ft_Locales::testMLocaleLocaleScripts()
 {
+#if 0
     QFETCH(QString, localeName);
     QFETCH(QStringList, localeScripts);
     MLocale locale(localeName);
     QCOMPARE(locale.localeScripts(), localeScripts);
+#else
+    QSKIP("LocaleScripts no longer in ICU data, thus MLocale::localeScripts() is non-functional. Skipping");
+#endif
 }
 
 void Ft_Locales::testMLocaleToLower_data()
@@ -1255,6 +1259,9 @@ void Ft_Locales::testMLocaleJoinStringList_data()
         << (QStringList() << "a (b)" << "ش (ت)" << "c (d)" << "中")
         << QString("‪a (b)‬, ‫ش (ت)‬, ‪c (d)‬, ‪中‬")
         ;
+
+    // MLocale::localeScript() needs to be reimplemented. Skipping locales that rely on that data.
+    return;
     QTest::newRow("ar_EG")
         << QString("ar_EG")
         << (QStringList() << "a (b)" << "ش (ت)" << "c (d)" << "中")
@@ -3951,6 +3958,8 @@ void Ft_Locales::testDifferentStrengthComparison_data()
     QTest::addColumn<QString>("string2");
     QTest::addColumn<QList<MLocale::Comparison> >("comparisonExpectedResults");
 
+    // not spotting anything for pinyinsearch in icu. Quite a special cased collation.
+#ifdef ALSO_VERIFY_ICU_DOES_ITS_JOB_AS_WE_EXPECT
     QTest::newRow("zh_CN@collation=pinyinsearch")
         <<"ja_JP"
         <<"zh_CN@collation=pinyinsearch"
@@ -4028,6 +4037,8 @@ void Ft_Locales::testDifferentStrengthComparison_data()
             << MLocale::LessThan
             << MLocale::LessThan
             );
+#endif
+
     QTest::newRow("en_US")
         <<"ja_JP"
         <<"en_US"
@@ -4237,7 +4248,6 @@ void Ft_Locales::checkAvailableLocales()
     requiredLocaleNames << "ja";          // "Japanese"
     requiredLocaleNames << "ja_JP";       // "Japanese (Japan)"
     requiredLocaleNames << "kk";          // "Kazakh"
-    requiredLocaleNames << "kk_Cyrl_KZ";  // "Kazakh (Kazakhstan)"
     requiredLocaleNames << "lt";          // "Lithuanian"
     requiredLocaleNames << "lt_LT";       // "Lithuanian (Lithuania)"
     requiredLocaleNames << "km";          // "Khmer"