In data binding, setting an attribute actually means calling a method, which might be
an issue if the method is added after a certain API.
This CL introduces a change which will check called methods per api and add necessary
API check code to avoid calling those methods in older platforms.
This CL also resurrects the Java Model Analyzer (in testing) and also fixes compiler tests.
Bug: 19593398
Change-Id: I0da4194625231cf43125e1b43338069e7d191eb9
Multiple layout files with the same name now share a common interface.
They also share all variables no matter where it is defined.
If a variable is NOT used in one of the layout files, its implementation
does not create a field BUT STILL creates the setter (to implement
the base interface).
If the same view id is used for two different types of views, return
type in the interface is android.view.View. If it is an include,
the return value is IViewDataBinder.
Change-Id: Ie3cc2bb8ec5ea48b71337e314ec588a050d714df
