openlayers/ol3 — pull request #435 by elemoine (2013-03-26 16:09:35+00:00)
Title: Use @expose for Coordinate.z

By annotating the z property with @expose the compiler does not try to
optimize that property in any way. See
https://developers.google.com/closure/compiler/docs/js-for-compiler. The doc
says that @expose should never be used in library code, but that's the only
way I found for our case.