Make vertical hit testing of InlineTextBoxes work. Painting has been patched, but hit testing has not.
Created attachment 72720 [details]
Created attachment 72722 [details]
Fixed in r71177,
Note there were three bugs in the patch, caught by layout test failures.
(1) The top/bottomVisibleOverflows for painting/hit testing needed to be logicalTop/logicalBottom.
(2) The logicalPointEnd needed a +1 put on it (since a padding of 0 still equals an extent of 1).
(3) The rect values for hit testing were backwards.