RFR: 8273349: Check uses of Stream::peek in controls and replace as needed [v3]

[drmarmac]

> This PR removes potentially incorrect usages of Stream.peek().
> The changed code should be covered by the tests that are already present.

drmarmac has updated the pull request incrementally with two additional commits since the last revision:

 - Preallocate in SelectedIndicesList.set()
 - Remove unused import

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

Changes:
  - all: https://git.openjdk.org/jfx/pull/1430/files
  - new: https://git.openjdk.org/jfx/pull/1430/files/1b285b5b..aed8e7e1

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1430&range=02
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1430&range=01-02

  Stats: 9 lines in 2 files changed: 3 ins; 2 del; 4 mod
  Patch: https://git.openjdk.org/jfx/pull/1430.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1430/head:pull/1430

PR: https://git.openjdk.org/jfx/pull/1430