RFR: 8330590: TextInputControl: previous word fails with Bhojpuri characters [v3]

[Andy Goryachev]

> This change replaces Character.isLetterOrDigit(char) which fails with surrogate characters with  Character.isLetterOrDigit(int).

Andy Goryachev has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - review comments
 - Merge branch 'master' into 8330590.prev.word
 - Merge branch 'master' into 8330590.prev.word
 - 8330590 TextInputControl: previous word fails with Bhojpuri characters

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Changes:
  - all: https://git.openjdk.org/jfx/pull/1444/files
  - new: https://git.openjdk.org/jfx/pull/1444/files/97322b08..6d1ce647

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1444&range=02
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1444&range=01-02

  Stats: 55843 lines in 214 files changed: 29325 ins; 14913 del; 11605 mod
  Patch: https://git.openjdk.org/jfx/pull/1444.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1444/head:pull/1444

PR: https://git.openjdk.org/jfx/pull/1444