Created attachment 592977 [details] [diff] [review]
We have various "other" reports in about:memory like "js-total-objects". These are misnomers, because they only apply to the main JSRuntime, and don't include web worker JSRuntimes. This patch renames them (e.g. "js-main-runtime-objects").
I also tree-ified "mjit-code" and "mjit-data" just for the hell of it. (I've done the same thing with "object-slots" and "object-elements" in bug 722595.)