ECMASCript feature
Implement Symbol.prototype[ @@toPrimitive ]( hint ).
The to primitive function described in spec can be created with FunctionBuilder and it can be added to Symbol.prototype with ConstructorBuilder::property() method.
example: a user could manually drag a docked window away from the main window or apps could position windows initially not right next to each other.
Obviously, there is no visible drag proxy in place when dragging not over browser windows.
To implement this onDragStart() needs to call Neo.Main.getWindowData() on all connected windows. The returning data object contains e.g. screenLeft,
Need to verify and update the tsdocs links to include all the new generated modules.
Add a description, image, and links to the ecmascript topic page so that developers can more easily learn about it.
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