The code in qmlcompiler working on ContextualTypes is very confusing as it handles internal types (c++ and synthetic jsrootgen type names) and qml types at the same places. Furthermore, some methods like qqmljsscope::findType() have different behaviors when running in different contexts, e.g. in the internal type context it needs to lookup namespaced c++ enums (e.g. QQmlComponent::Status) while in the qml type context it needs to lookup inline components (qmlFileName.MyInlineComponent). Changed ContextualTypes to be a struct with the types QHash and an enum with the context (QML or INTERNAL), Drive-by change: amend the iterations over types.keys() to use an iterator instead of allocating a temporary QList as types is not that small (may contain around 400 items just for the builtins). Fixes: QTBUG-107191 Change-Id: Ib463ec873019ea1e6844c522a090030e9a44d53f Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>