Fix replaceTextRange logic for unfocused StyledText with variable line height#2318

mickaelistria merged 1 commit intoeclipse-platform:mastereclipse-platform/eclipse.platform.swt:masterfrom

tobiasmelcher:styled_text_index_out_of_boundstobiasmelcher/eclipse.platform.swt:styled_text_index_out_of_boundsCopy head branch name to clipboard