qmlsc should support casting of various int types

Warning: main.qml:14:9: Could not compile function writeValues: Type Druggeljug of Druggeljug does not have a property myInt8 for writing [compiler]
        Druggeljug.myInt8   = 42
        ^^^^^^^^^^
Warning: main.qml:27:32: Type "qint8" of property "myInt8" not found. This is likely due to a missing dependency entry or a type not being exposed declaratively. 
[unresolved-type]
        console.log(Druggeljug.myInt8)
                               ^^^^^^
Warning: main.qml:27:32: Could not compile function readValues: Cannot load property myInt8 from Druggeljug of Druggeljug. [compiler]
        console.log(Druggeljug.myInt8)
                               ^^^^^^
Warning: main.qml:40:20: Could not compile function showValues: type qint8 for argument 0 cannot be resolved [compiler]
        Druggeljug.showMyInt8(1337)
                   ^^^^^^^^^^

[ 77%] Building CXX object CMakeFiles/appsandbox.dir/build/.rcc/qmlcache/appsandbox_c3_qml.cpp.o
/home/prcs1076/tmp/sandbox/build/.rcc/qmlcache/appsandbox_c3_qml.cpp: In lambda function:
/home/prcs1076/tmp/sandbox/build/.rcc/qmlcache/appsandbox_c3_qml.cpp:336:35: error: call of overloaded 'QJSPrimitiveValue(uint&)' is ambiguous
  336 | r2_2 = QJSPrimitiveValue(retrieved).toString();
      |                                   ^
In file included from /home/prcs1076/Projekte/qt6-build/qtbase/include/QtQml/qjsprimitivevalue.h:1,
                 from /home/prcs1076/Projekte/qt6/qtdeclarative/src/qml/jsapi/qjsmanagedvalue.h:8,
                 from /home/prcs1076/Projekte/qt6-build/qtbase/include/QtQml/qjsmanagedvalue.h:1,
                 from /home/prcs1076/Projekte/qt6/qtdeclarative/src/qml/jsapi/qjsengine.h:13,
                 from /home/prcs1076/Projekte/qt6-build/qtbase/include/QtQml/qjsengine.h:1,
                 from /home/prcs1076/tmp/sandbox/build/.rcc/qmlcache/appsandbox_c3_qml.cpp:9:
/home/prcs1076/Projekte/qt6/qtdeclarative/src/qml/jsapi/qjsprimitivevalue.h:157:14: note: candidate: 'QJSPrimitiveValue::QJSPrimitiveValue(const QVariant&)'
  157 |     explicit QJSPrimitiveValue(const QVariant &variant) noexcept
      |              ^~~~~~~~~~~~~~~~~
/home/prcs1076/Projekte/qt6/qtdeclarative/src/qml/jsapi/qjsprimitivevalue.h:127:26: note: candidate: 'constexpr QJSPrimitiveValue::QJSPrimitiveValue(double)'
  127 |     Q_IMPLICIT constexpr QJSPrimitiveValue(double value) noexcept : d(value) {}
      |                          ^~~~~~~~~~~~~~~~~
/home/prcs1076/Projekte/qt6/qtdeclarative/src/qml/jsapi/qjsprimitivevalue.h:126:26: note: candidate: 'constexpr QJSPrimitiveValue::QJSPrimitiveValue(int)'
  126 |     Q_IMPLICIT constexpr QJSPrimitiveValue(int value) noexcept : d(value) {}
      |                          ^~~~~~~~~~~~~~~~~
/home/prcs1076/Projekte/qt6/qtdeclarative/src/qml/jsapi/qjsprimitivevalue.h:125:26: note: candidate: 'constexpr QJSPrimitiveValue::QJSPrimitiveValue(bool)'
  125 |     Q_IMPLICIT constexpr QJSPrimitiveValue(bool value) noexcept : d(value) {}
      |                          ^~~~~~~~~~~~~~~~~
/home/prcs1076/Projekte/qt6/qtdeclarative/src/qml/jsapi/qjsprimitivevalue.h:22:7: note: candidate: 'constexpr QJSPrimitiveValue::QJSPrimitiveValue(const QJSPrimit
iveValue&)'
   22 | class QJSPrimitiveValue
      |       ^~~~~~~~~~~~~~~~~
/home/prcs1076/Projekte/qt6/qtdeclarative/src/qml/jsapi/qjsprimitivevalue.h:22:7: note: candidate: 'constexpr QJSPrimitiveValue::QJSPrimitiveValue(QJSPrimitiveVal
ue&&)'