Rename HighlightRangeData to HighlightRange as part of rename work to clarify classes around highlights.
<rdar://problem/115542469>
Pull request: https://github.com/WebKit/WebKit/pull/17806
Committed 268022@main (6920239d3ba0): <https://commits.webkit.org/268022@main> Reviewed commits have been landed. Closing PR #17806 and removing active labels.