RFR: 8292353: TableRow vs. TreeTableRow: inconsistent visuals in cell selection mode [v11]

[Andy Goryachev]

> The issue is caused by TreeTableRow incorrectly selected when cell selection mode is enabled.
> 
> Changes:
> - modified TreeTableRow.updateSelection()

Andy Goryachev has updated the pull request incrementally with one additional commit since the last revision:

  8292353: review comments

-------------

Changes:
  - all: https://git.openjdk.org/jfx/pull/875/files
  - new: https://git.openjdk.org/jfx/pull/875/files/2c7130d9..13ee82f4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=875&range=10
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=875&range=09-10

  Stats: 408 lines in 4 files changed: 59 ins; 26 del; 323 mod
  Patch: https://git.openjdk.org/jfx/pull/875.diff
  Fetch: git fetch https://git.openjdk.org/jfx pull/875/head:pull/875

PR: https://git.openjdk.org/jfx/pull/875