RFR: 8367382: Expand use of representation equivalence terminology [v2]

[Joe Darcy]

> Small doc enhancement to use the term "representation equivalence" in a few more locations.

Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:

  Fix typo found in code review.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/27232/files
  - new: https://git.openjdk.org/jdk/pull/27232/files/0a4d8f26..5c7c92b6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27232&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27232&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/27232.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27232/head:pull/27232

PR: https://git.openjdk.org/jdk/pull/27232