[vectorIntrinsics+compress] RFR: Compress JavaDoc. [v2]

[Paul Sandoz]

> Add a little summary of compress/expand in the cross-lane section of the `Vector` class doc.

Paul Sandoz has updated the pull request incrementally with one additional commit since the last revision:

  Use correct class name, VectorMask

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Changes:
  - all: https://git.openjdk.java.net/panama-vector/pull/162/files
  - new: https://git.openjdk.java.net/panama-vector/pull/162/files/a8993c63..3c9c2626

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=162&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=162&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/162.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/162/head:pull/162

PR: https://git.openjdk.java.net/panama-vector/pull/162