Allow compareLengthI to shortcircuit if the maximum length is less than the target length.
Tracking both upper and lower bounds in Size
Add `compareSize`.
simplified compareLengthI with compareSize
Use `shiftR` as `length >= 0`
Merge branch 'patch-3' of git://github.com/ekmett/text into ekmett-patch-3
Fix test suite
Add rtsopts for benchmarks
Set another flag to manual
Merge