Bug 1043690 - Part 1: Provide helper function for HTMLDocument and HTMLFormElement proxies to use from [[Set]]. r=efaust, a=sledru
Bug 1043690 - Part 2: Change the codegen for DOM proxies to ignore named props when looking up property descriptors on [[Set]]. r=efaust, a=sledru
Bug 1044193 - Always cleanup on heap allocation path. r=glandium, a=sledru