QmlDesigner: Add ProjectStorage::propertyDeclaration

Returns for a property declaration id the property declaration infos. If
there are no infos a null optional is returned.

Task-number: QDS-7278
Change-Id: I4faa158008130f00f31062bab94baa7f88d70edf
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/qmldesigner/designercore/projectstorage/projectstorage.h

@@ -176,6 +176,14 @@ public:
             .template valueWithTransaction<PropertyDeclarationId>(&typeId, propertyName);
     }
 
+    Utils::optional<Storage::Info::PropertyDeclaration> propertyDeclaration(
+        PropertyDeclarationId propertyDeclarationId) const
+    {
+        return selectPropertyDeclarationForPropertyDeclarationIdStatement
+            .template optionalValueWithTransaction<Storage::Info::PropertyDeclaration>(
+                &propertyDeclarationId);
+    }
+
     Utils::optional<Utils::SmallString> propertyName(PropertyDeclarationId propertyDeclarationId) const
     {
         return selectPropertyNameStatement.template optionalValueWithTransaction<Utils::SmallString>(
@@ -2926,6 +2934,11 @@ public:
         "FROM propertyDeclarations "
         "WHERE typeId=?1 AND name=?2 LIMIT 1",
         database};
+    mutable ReadStatement<4, 1> selectPropertyDeclarationForPropertyDeclarationIdStatement{
+        "SELECT typeId, name, propertyTraits, propertyTypeId "
+        "FROM propertyDeclarations "
+        "WHERE propertyDeclarationId=?1 LIMIT 1",
+        database};
 };
 extern template class ProjectStorage<Sqlite::Database>;
 } // namespace QmlDesigner

src/plugins/qmldesigner/designercore/projectstorage/projectstoragetypes.h

@@ -926,3 +926,36 @@ public:
 };
 
 } // namespace QmlDesigner::Storage::Synchronization
+
+namespace QmlDesigner::Storage::Info {
+
+class PropertyDeclaration
+{
+public:
+    PropertyDeclaration(long long typeId,
+                        Utils::SmallStringView name,
+                        long long traits,
+                        long long propertyTypeId)
+        : typeId{typeId}
+        , name{name}
+        , traits{static_cast<PropertyDeclarationTraits>(traits)}
+        , propertyTypeId{propertyTypeId}
+    {}
+
+    PropertyDeclaration(TypeId typeId,
+                        Utils::SmallStringView name,
+                        PropertyDeclarationTraits traits,
+                        TypeId propertyTypeId)
+        : typeId{typeId}
+        , name{name}
+        , traits{traits}
+        , propertyTypeId{propertyTypeId}
+    {}
+
+    TypeId typeId;
+    Utils::SmallString name;
+    PropertyDeclarationTraits traits;
+    TypeId propertyTypeId;
+};
+
+} // namespace QmlDesigner::Storage::Info