Add fractional positioning support in wrapped lines to certain methods. This fixes off by one errors that can happen in some cases. Simplify Editor::PositionFromLineX() method.
Add fractional positioning support in wrapped lines to certain methods.
This fixes off by one errors that can happen in some cases.
Simplify Editor::PositionFromLineX() method.

R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone