QmlDesigner: Disallow ApplicationWindow

ApplicationWindow is not properly working in the design mode
and files using ApplicationWindow are usually not written with
the design mode in mind.

Task-number: QTCREATORBUG-25984
Task-number: QTCREATORBUG-25983
Change-Id: Ia30ec26e9078ca0a9c1da11970202983e15ce4c8
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/libs/qmljs/qmljscheck.cpp

@@ -608,9 +608,8 @@ public:
 class UnsupportedTypesByVisualDesigner : public QStringList
 {
 public:
-    UnsupportedTypesByVisualDesigner() : QStringList({"Timer",
-                                                      "Package",
-                                                      "Particles"})
+    UnsupportedTypesByVisualDesigner()
+        : QStringList({"Timer", "Package", "Particles", "ApplicationWindow"})
     {}
 };
 
@@ -628,11 +627,13 @@ public:
 class UnsupportedRootObjectTypesByVisualDesigner : public QStringList
 {
 public:
-    UnsupportedRootObjectTypesByVisualDesigner() : QStringList({"QtObject"
+    UnsupportedRootObjectTypesByVisualDesigner()
+        : QStringList({"QtObject"
                        "ListModel"
                        "Component"
                        "Timer"
-                                                                "Package"})
+                       "Package",
+                       "ApplicationWindow"})
     {}
 };