"Only supported for HTMLDocument" notes inconsistently applied

[foolip]

#6839 fixed a bunch of entries for things that have been moved from HTMLDocument to Document, but there are still lots of APIs which were once on HTMLDocument which haven't gotten this treatment.

https://software.hixie.ch/utilities/js/live-dom-viewer/?saved=9330 is a test for all the entries that are currently in Document.json. As an example document.head seems to have been moved from HTMLDocument to Document in Firefox 61.

This is fairly well suited to systematic testing, but https://mdn-bcd-collector.appspot.com/ doesn't generate the variant tests that would be needed to do this. It's also doubtful that it's worth automating, since it would be fixed once and then not need any further testing.

[caugner]

For what it's worth, here's a slightly updated version of the Live DOM Viewer test with ✅ and ❌ instead of "true" and "false" to make it more easy to spot the differences.

Edit: And here's a test that only shows the inconsistencies, i.e. omitting what's supported in all or none: https://software.hixie.ch/utilities/js/live-dom-viewer/?saved=13374

[caugner]

I have gathered data in this repo.

For example, this is the summary for Firefox: https://github.com/caugner/document-members/blob/main/issues/firefox.txt

Here's what Firefox version fixed which members:

Member	Added	Fixed
alinkColor	1	69
all	24	70
anchors	1	61
applets	1	61
bgColor	1	69
body	1	60
captureEvents	1	70
clear	1	70
close	1	69
compatMode	1	19
cookie	1	68
designMode	1	69
domain	1	69
embeds	1	61
execCommandShowHelp	1	14
execCommand	1	69
fgColor	1	69
forms	1	61
getElementsByName	1	58
getSelection	1	57
head	4	61
height	1	6
images	1	61
linkColor	1	69
links	1	61
mozSyntheticDocument	22	23
open	1	69
plugins	1	61
queryCommandEnabled	1	69
queryCommandIndeterm	1	69
queryCommandState	1	69
queryCommandSupported	1	69
queryCommandText	1	14
queryCommandValue	1	69
releaseEvents	1	70
routeEvent	1	25
scripts	9	61
URL	1	19
vlinkColor	1	69
width	1	6
writeln	1	69
write	1	69

[caugner]

This is the summary for Chrome: https://github.com/caugner/document-members/blob/main/issues/chrome.txt

Here's what Chrome version fixed which members:

Member	Added	Fixed
alinkColor	1	64
all	1	64
bgColor	1	64
captureEvents	1	64
clear	1	64
close	1	45
compatMode	1	8
designMode	1	36
dir	1	36
embeds	1	36
fgColor	1	64
height	1, 19	17, 31
linkColor	1	64
open	1	45
plugins	1	36
releaseEvents	1	64
scripts	1	36
vlinkColor	1	64
width	1, 19	17, 31
write	1	45
writeln	1	45

[caugner]

Here's a better overview for Chrome, Firefox and Safari: https://github.com/caugner/document-members/blob/main/SUMMARY.md