QmltcVisitor: Fix sort order of array used with std::binary_search

Using std::binary_search has the requirement that the passed
range fulfils ordering requirements, which was not the case
for the cppKeywords array here.

As the QString doc says [1]:

> QStrings can be compared using overloaded operators such as operator<(),
> operator<=(), operator==(), operator>=(), and so on. Note that
> the comparison is based exclusively on the numeric Unicode
> values of the characters. It is very fast, but is not what a
> human would expect; (...)

Therefore, sort the array accordingly and add an assert to
ensure it will remain sorted.

Fixes an crash/assert when building qtdeclarative with
CXXFLAGS='-D_GLIBCXX_DEBUG':

    /usr/include/c++/13/bits/stl_algo.h:2243:
    In function:
        bool std::binary_search(_FIter, _FIter, const _Tp&) [with _FIter = const
        QString*; _Tp = QStringView]

    Error: elements in iterator range [first, last) are not partitioned by the
    value __val.

    Objects involved in the operation:
        iterator "first" @ 0x7ffc4a2c4f18 {
          type = QString const* (constant iterator);
        }
        iterator "last" @ 0x7ffc4a2c4f10 {
          type = QString const* (constant iterator);
        }
    Aborted (core dumped)
    ninja: build stopped: subcommand failed.

GDB backtrace:

    Program terminated with signal SIGABRT, Aborted.
    #0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44
    44      ./nptl/pthread_kill.c: No such file or directory.
    (gdb) bt
    #0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44
    #1  0x00007f307e0a815f in __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78
    #2  0x00007f307e05a472 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
    #3  0x00007f307e0444b2 in __GI_abort () at ./stdlib/abort.c:79
    #4  0x00007f307e2a300d in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
    #5  0x00005639ff90471d in std::binary_search<QString const*, QStringView> (__first=0x5639ffa1a9c0 <QmltcVisitor::checkForNamingCollisionsWithCpp(QDeferredSharedPointer<QQmlJSScope const> const&)::cppKeywords>,
        __last=0x5639ffa1b2c0 <guard variable for QmltcVisitor::checkForNamingCollisionsWithCpp(QDeferredSharedPointer<QQmlJSScope const> const&)::cppKeywords>, __val=...) at /usr/include/c++/13/bits/stl_algo.h:2243
    #6  0x00005639ff8fb837 in operator() (__closure=0x7ffc4a2c52bf, word=...) at /home/michi/development/git/qt5/qtdeclarative/tools/qmltc/qmltcvisitor.cpp:764
    #7  0x00005639ff8fb89e in operator() (__closure=0x7ffc4a2c52a0, name=..., errorPrefix=...) at /home/michi/development/git/qt5/qtdeclarative/tools/qmltc/qmltcvisitor.cpp:768
    #8  0x00005639ff8fc99b in QmltcVisitor::checkForNamingCollisionsWithCpp (this=0x7ffc4a2c6070, type=...) at /home/michi/development/git/qt5/qtdeclarative/tools/qmltc/qmltcvisitor.cpp:787
    #9  0x00005639ff8f9dea in QmltcVisitor::endVisit (this=0x7ffc4a2c6070, program=0x563a002e0628) at /home/michi/development/git/qt5/qtdeclarative/tools/qmltc/qmltcvisitor.cpp:341
    #10 0x00007f307f6636fa in QQmlJS::AST::UiProgram::accept0 (this=0x563a002e0628, visitor=0x7ffc4a2c6070) at /home/michi/development/git/qt5/qtdeclarative/src/qml/parser/qqmljsast.cpp:1193
    #11 0x00007f3080159b8f in QQmlJS::AST::Node::accept (this=0x563a002e0628, visitor=0x7ffc4a2c6070)
        at /home/michi/development/git/qt5/qtbase/include/QtQml/6.7.0/QtQml/private/../../../../../../qtdeclarative/src/qml/parser/qqmljsast_p.h:272
    #12 0x00007f3080212f4b in QQmlJSTypeResolver::init (this=0x7ffc4a2c5b50, visitor=0x7ffc4a2c6070, program=0x563a002e0628) at /home/michi/development/git/qt5/qtdeclarative/src/qmlcompiler/qqmljstyperesolver.cpp:173
    #13 0x00005639ff8f0bd3 in QmltcTypeResolver::init (this=0x7ffc4a2c5b50, visitor=0x7ffc4a2c6070, program=0x563a002e0628) at /home/michi/development/git/qt5/qtdeclarative/tools/qmltc/qmltctyperesolver.cpp:19
    #14 0x00005639ff8c02d4 in main (argc=23, argv=0x7ffc4a2c7a68) at /home/michi/development/git/qt5/qtdeclarative/tools/qmltc/main.cpp:269

[1] https://doc.qt.io/qt-6/qstring.html#comparing-strings

Change-Id: I82ebbcdca4ab90155b935f9af24b3a3821134563
Reviewed-by: Sami Shalayel <sami.shalayel@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

Author: michaelweghorn

tools/qmltc/qmltcvisitor.cpp

@@ -674,20 +674,20 @@ void QmltcVisitor::checkForNamingCollisionsWithCpp(const QQmlJSScope::ConstPtr &
         u"case"_s,
         u"catch"_s,
         u"char"_s,
-        u"char8_t"_s,
         u"char16_t"_s,
         u"char32_t"_s,
+        u"char8_t"_s,
         u"class"_s,
+        u"co_await"_s,
+        u"co_return"_s,
+        u"co_yield"_s,
         u"compl"_s,
         u"concept"_s,
         u"const"_s,
+        u"const_cast"_s,
         u"consteval"_s,
         u"constexpr"_s,
-        u"const_cast"_s,
         u"continue"_s,
-        u"co_await"_s,
-        u"co_return"_s,
-        u"co_yield"_s,
         u"decltype"_s,
         u"default"_s,
         u"delete"_s,
@@ -755,6 +755,7 @@ void QmltcVisitor::checkForNamingCollisionsWithCpp(const QQmlJSScope::ConstPtr &
         u"xor"_s,
         u"xor_eq"_s,
     };
+    Q_ASSERT(std::is_sorted(std::begin(cppKeywords), std::end(cppKeywords)));
 
     const auto isReserved = [&](QStringView word) {
         if (word.startsWith(QChar(u'_')) && word.size() >= 2