QmlJS: Fix completion inside grouped propery bindings.

Task-number: QTCREATORBUG-3541
Change-Id: Ida8e59b65836c8515fbfbd2a9e4737d9ae04e76c
Reviewed-on: http://codereview.qt.nokia.com/639
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@nokia.com>

src/libs/qmljs/qmljscheck.cpp

@@ -461,9 +461,9 @@ bool Check::visit(UiObjectBinding *ast)
 void Check::visitQmlObject(Node *ast, UiQualifiedId *typeId,
                            UiObjectInitializer *initializer)
 {
-    // If the 'typeId' starts with a lower-case letter, it doesn't define
-    // a new object instance. For instance: anchors { ... }
-    if (typeId->name->asString().at(0).isLower() && ! typeId->next) {
+    // Don't do type checks if it's a grouped property binding.
+    // For instance: anchors { ... }
+    if (_doc->bind()->isGroupedPropertyBinding(ast)) {
         checkScopeObjectMember(typeId);
         // ### don't give up!
         return;