RFR: 8327471: RTLTextFlowCharacterIndexTest fails on Linux [v2]

[Karthik P K]

> Because of the difference in the size of characters in default fonts in different OS, 2 tests were failing in `RTLTextFlowCharacterIndexTest`.
> 
> Increased the scene width to accommodate all the characters as required for the test to validate HitInfo values in all the platforms.

Karthik P K has updated the pull request incrementally with one additional commit since the last revision:

  Review comments

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Changes:
  - all: https://git.openjdk.org/jfx/pull/1399/files
  - new: https://git.openjdk.org/jfx/pull/1399/files/cdf341fc..06c81170

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1399&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1399&range=00-01

  Stats: 19 lines in 1 file changed: 1 ins; 0 del; 18 mod
  Patch: https://git.openjdk.org/jfx/pull/1399.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1399/head:pull/1399

PR: https://git.openjdk.org/jfx/pull/1399