RFR: 8288414: Long::compress/expand samples are not correct

[Paul Sandoz]

Update the code examples in the api notes of Long::compress/expand. Some constants need to be explicitly long values.

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Commit messages:
 - Correct Long.compress/expand api notes.

Changes: https://git.openjdk.org/jdk19/pull/14/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk19&pr=14&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8288414
  Stats: 10 lines in 1 file changed: 0 ins; 0 del; 10 mod
  Patch: https://git.openjdk.org/jdk19/pull/14.diff
  Fetch: git fetch https://git.openjdk.org/jdk19 pull/14/head:pull/14

PR: https://git.openjdk.org/jdk19/pull/14