qmljs: support inline components

* add inline components to bind.
* inserts inline components in the component that contains them (makes
  Context:lookupType simpler)
* unify Context:lookupType overloads without adding extra heap allocations
  using a template (avoid code duplication)
* add tests for inline components
* warn about nested components
* use model manager to load dependencies in tst_check (old test did
  not load dependencies and simply skipped all checks on imports)

Fixes: QTCREATORBUG-24766
Fixes: QTCREATORBUG-24705
Change-Id: Ibcade7752cdaa08e960f66db3a724ab7fb3268cf
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

src/libs/qmljs/qmljsbind.h

@@ -59,6 +59,10 @@ public:
     ObjectValue *findAttachedJSScope(AST::Node *node) const;
     bool isGroupedPropertyBinding(AST::Node *node) const;
 
+    QHash<QString, ObjectValue*> inlineComponents() const {
+        return _inlineComponents;
+    }
+
 protected:
     using AST::Visitor::visit;
 
@@ -75,6 +79,7 @@ protected:
     bool visit(AST::UiObjectBinding *ast) override;
     bool visit(AST::UiScriptBinding *ast) override;
     bool visit(AST::UiArrayBinding *ast) override;
+    bool visit(AST::UiInlineComponent *ast) override;
 
     // QML/JS
     bool visit(AST::FunctionDeclaration *ast) override;
@@ -93,11 +98,13 @@ private:
     ObjectValue *_currentObjectValue;
     ObjectValue *_idEnvironment;
     ObjectValue *_rootObjectValue;
+    QString _currentComponentName;
 
     QHash<AST::Node *, ObjectValue *> _qmlObjects;
     QMultiHash<QString, const ObjectValue *> _qmlObjectsByPrototypeName;
     QSet<AST::Node *> _groupedPropertyBindings;
     QHash<AST::Node *, ObjectValue *> _attachedJSScopes;
+    QHash<QString, ObjectValue*> _inlineComponents;
 
     bool _isJsLibrary;
     QList<ImportInfo> _imports;