Make "on" syntax mandatory for value sources and interceptors

Where you would have written

   x: NumberAnimation {}
   y: Behavior {}

you now must write

   NumberAnimation on x {}
   Behavior on y {}

This change also makes the parser more strict with respect to multiple
assignments to a single property - they're no longer allowed.  For example
this

   x: 10
   x: 11

is now an error.

2 files changed, 3 insertions, 4 deletions

diff --git a/demos/declarative/minehunt/main.cpp b/demos/declarative/minehunt/main.cpp
index 0e99731..c8b4b54 100644
--- a/demos/declarative/minehunt/main.cpp
+++ b/demos/declarative/minehunt/main.cpp
@@ -100,8 +100,8 @@ public:
     MyWidget(int = 370, int = 480, QWidget *parent=0, Qt::WindowFlags flags=0);
     ~MyWidget();
 
-    Q_PROPERTY(QList<Tile *> *tiles READ tiles CONSTANT);
-    QList<Tile *> *tiles() { return &_tiles; }
+    Q_PROPERTY(QDeclarativeListProperty<Tile> tiles READ tiles CONSTANT);
+    QDeclarativeListProperty<Tile> tiles() { return QDeclarativeListProperty<Tile>(this, _tiles); }
 
     Q_PROPERTY(bool isPlaying READ isPlaying NOTIFY isPlayingChanged);
     bool isPlaying() {return playing;}
@@ -168,7 +168,6 @@ MyWidget::MyWidget(int width, int height, QWidget *parent, Qt::WindowFlags flags
 
     QDeclarativeContext *ctxt = canvas->rootContext();
     ctxt->addDefaultObject(this);
-    ctxt->setContextProperty("tiles", QVariant::fromValue<QList<Tile*>*>(&_tiles));//QTBUG-5675
 
     canvas->setSource(QUrl::fromLocalFile(fileName));
 }
diff --git a/demos/declarative/minehunt/minehunt.qml b/demos/declarative/minehunt/minehunt.qml
index 617a6ed..c54e741 100644
--- a/demos/declarative/minehunt/minehunt.qml
+++ b/demos/declarative/minehunt/minehunt.qml
@@ -32,7 +32,7 @@ Item {
                         anchors.verticalCenter: parent.verticalCenter
                         source: "pics/flag.png"
                         opacity: model.hasFlag
-                        opacity: Behavior {
+                        Behavior on opacity {
                             NumberAnimation {
                                 property: "opacity"
                                 duration: 250