Add Component line number information from MOC into QQmlJSScopes. That is needed for qmlls to find definitions of QML components defined in C++ headers. This change adds the line number information into the generated qmltypes from MOCs JSON, and reads it back into a QQmlJSScope. Instead of adding an extra member, re-use the QQmlJSSourceLocation that is inside the QQmlJSScope. Set the column to 1 for it to be valid and to simplify some code on the qmlls side. This allows to treat a sourcelocation in the same way, independently if the component described by the QQmlJSScope was defined in QML or C++. Avoid an assertion in QQmlJSImportVisitor::checkRequiredProperties() where printFix assumes that a file can be opened if its source location is valid: this change adds have valid sourcelocations to qml components defined in C++, but QQmlJSScope::filePath() can't be opened because it only contains the filename, not the file path. Task-number: QTBUG-128393 Change-Id: Idf4acc32cff60730528322286ad4ba726b502ac1 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>