[lworld] RFR: 8247569: [lworld] Align with spec for <vnew> methods [v3]

[David Simms]

> Merged javac and VM work together, includes VM support (JDK-8294224)

David Simms has updated the pull request incrementally with one additional commit since the last revision:

  Update test/jdk/valhalla/valuetypes/StaticFactoryMethodHandleTest.java
  
  Co-authored-by: Mandy Chung <mandy.chung at oracle.com>

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Changes:
  - all: https://git.openjdk.org/valhalla/pull/788/files
  - new: https://git.openjdk.org/valhalla/pull/788/files/c9d2bb6d..55e570ee

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=788&range=02
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=788&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/valhalla/pull/788.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/788/head:pull/788

PR: https://git.openjdk.org/valhalla/pull/788