RFR: 8351332: Line breaks in search tag descriptions corrupt JSON search index [v2]

[Nizar Benalla]

> Please review this patch to fix an issue in the `tag-search-index.js` generation.
> 
> The problem was in the `toJSON()` method of `IndexItem`. When adding the description, it's using `escapeQuotes(description)` which only escapes backslashes and quotes, but doesn't normalize whitespace.
> 
> TIA

Nizar Benalla has updated the pull request incrementally with one additional commit since the last revision:

  move logic of normalizing whitespace to the common utils class

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24202/files
  - new: https://git.openjdk.org/jdk/pull/24202/files/a3ae59fe..3e040204

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24202&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24202&range=00-01

  Stats: 11 lines in 5 files changed: 4 ins; 1 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/24202.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24202/head:pull/24202

PR: https://git.openjdk.org/jdk/pull/24202