[jdk11u-dev] RFR: 8263776: [JVMCI] add helper to perform Java upcalls [v3]

[Severin Gehwolf]

> Here is a backport for JDK-8263776. The patch doesn't apply cleanly since it uses features only introduced with JDK-8230199 (JDK 15+, not in OpenJDK 11u). This patch is the same labsopenjdk 11 uses. This patch is also needed for using graal js with plain OpenJDK.
> 
> Testing: test/hotspot/jtreg/compiler/jvmci and manual upstream Graal unit test.

Severin Gehwolf has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - Use a closer version of the JDK 17 patch
 - Merge branch 'master' into jdk-8263776-no-arg-jvmci-change
 - Cleanup whitespace
 - Backport 6b4c654186e49528eeae7249fdcd0f2d1a98b3ad

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

Changes:
  - all: https://git.openjdk.java.net/jdk11u-dev/pull/279/files
  - new: https://git.openjdk.java.net/jdk11u-dev/pull/279/files/7b7e3407..bec2238b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=279&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=279&range=01-02

  Stats: 276 lines in 5 files changed: 126 ins; 77 del; 73 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/279.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/279/head:pull/279

PR: https://git.openjdk.java.net/jdk11u-dev/pull/279