Make FindColumn() return correct position when column falls inside tab width. Bug #3483713.
Make FindColumn() return correct position when column falls inside tab width. Bug #3483713.

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