[vectorIntrinsics] RFR: 8258072: Add Reinterpret nodes implementation for Arm SVE [v3]

[Wang Huang]

> Add reduction nodes support for Arm SVE. Add the backend codegen for node like "VectorReinterpret" .
> In this patch, We implement these instructs: 
> *  reinterpret (src == dst)
> *  reinterpretResize, including,
>   1）  reinterpret（Expand） (src < dst)
>   2） reinterpret（Shrink） (src > dst)
> 
> At the same time, we fix a bug (JDK-8258989) because it is not merged in panama-vector/vectorIntrinsics.

Wang Huang has updated the pull request incrementally with one additional commit since the last revision:

  fix reinterpretNode implementation

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

Changes:
  - all: https://git.openjdk.java.net/panama-vector/pull/30/files
  - new: https://git.openjdk.java.net/panama-vector/pull/30/files/f1de6a0b..73e7c2cb

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=30&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=30&range=01-02

  Stats: 17 lines in 2 files changed: 0 ins; 11 del; 6 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/30.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/30/head:pull/30

PR: https://git.openjdk.java.net/panama-vector/pull/30