| - Get rid of custom GSUB/GPOS table type enum? | |
| - Test OpenType 1.6 mark filtering sets | |
| - When sanitizing, have to do a second round to make sure no toe-stepping | |
| - HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH vs LookupType::... mess | |
| - Rename LookupFlag::MarkAttachmentType to LookupFlag:IgnoreSpecialMarks | |
| - cmap14 | |
| - size_t? |