[css-writing-modes][css-pseudo][css-inline] text-combine-upright, initial-letter and i18n quotation

[realskk]

This issue is forked from #653 .

p {
 writing-mode:vertical-rl;
  text-orientation: sideways;
  text-combine-upright: 2;
}
p::first-letter {
  initial-letter: 3;
 }
<p>"13" is a really nice number. Lorem Ipsum...</p>

When TCY includes quotation, and in case of the above code, what is the adequate rendering results?
The below two images are what I imagined.

The example depicts text-orientation: sideways;, but this question is applicable when the contents is vertical writing text, such as Japanese.

Moreover, when quotations are 「」 or 「」, the position of these quotations might be different from "", or ''.

[svgeesus]

@kojiishi @fantasai is this the same issue as already-closed #653 or does it represent a new request?

[frivoal]

@svgeesus It is forked from that, but distinct. @kojiishi asked for it to be reported separately: #653 (comment)

[fantasai]

The resolutions/response in #653 (comment) apply here as well: there is no special interaction between any of initial-letter, :first-letter, or text-combine-upright, they all apply exactly as specified.

The end result in this case will be that the quotations are sideways, the 13 is upright, and the set as a whole is enlarged to span three lines of text. So, similar to the second rendering, but with larger quotation marks.

Closing as invalid, since there is no spec issue.