[vectorIntrinsics] RFR: Use Integer/Long compress and expand. [v3]

[Paul Sandoz]

> Use the Integer/Long compress and expand implementations.
> 
> Fix compilation of perf tests for constant shift operations (brought in via merge that does not have perf tests).

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

  Declare CONST_SHIFT for integral types only

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Changes:
  - all: https://git.openjdk.java.net/panama-vector/pull/194/files
  - new: https://git.openjdk.java.net/panama-vector/pull/194/files/dcbd9d3d..8cdbfcfa

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=194&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=194&range=01-02

  Stats: 28 lines in 25 files changed: 6 ins; 22 del; 0 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/194.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/194/head:pull/194

PR: https://git.openjdk.java.net/panama-vector/pull/194