~jaro/balkon

ref: 3d78355411f15c6d8ebf001921a5167657992712 balkon/test/Data/Text/ParagraphLayout/RunSpec.hs -rw-r--r-- 1.6 KiB 
Minimise working with Data.Text.Internal.

Link to Span using a generic wrapper.

Implement "plain" interface.

Separate tests by module.