The method names are basically all reviewed source code that is unlikely
to contain characters that would terminate a comment in HTML, CSS,
or JS. However, we also include virtual call frames for database
queries, such as:
> 0.30% 62 - ParserOptions::getTargetLanguage
> 0.29% 1 - section.query-m: SELECT /* WikiPage::pageData */ page_id,.. FROM page WHERE .. LIMIT 1
> 0.29% 104 - MediaWiki\Logger\LoggerFactory::getInstance
This has two problems:
1. The queries contain a block comment, which is not only likely
but guruanteed to terminate a containing block comment, as a result
this broke load.php CSS and JS responses (CSS was fine-ish, since
it just gets some recoverable parse warnings after the rest of the
stylesheet; JS was less fine).
For formatBlockComment, I use the same replacement as what we do
in ResourceLoader::makeComment() already/
2. For the HTML mode, it seems not unlikely that for certain queries
it might terminate the HTML comment or (in "visible" mode) cause
characters to not be displayed correctly due to interpreted as
HTML instead of plain text when inside a <pre> element.
Change-Id: I1a9f1ed149f374805d6493f07f5430786d8700fa
734b0e9f74