A few dozen Emojis use otherwise general font characters in the lower codepages.
Luckily, the Emoji codepages always include either a VS16 or KeyCap suffix.
Detection of Emoji Components, for use as suffixes of TextDefault.
Detection of Non-Presentation Emojis as TextDefault.
Detection of all Extended Pictographics as EmojiDefault.
Based on Mozilla bugs 1119128, 1285533, and 1421964.
gfx.font_rendering.fontconfig.fontlist.enabled is no longer available.
gfxFontconfigUtils.h still exists, and will be removed in another commit. Just
need more research on bug 1385029.
Tag #1862
Since these are just interpreted comments, there's 0 impact on actual code.
This removes all lines that match /* vim: set(.*)tw=80: */ with S&R -- there are
a few others scattered around which will be removed manually in a second part.