RFR: 8282191: Implementation of Foreign Function & Memory API (Preview) [v36]

[Maurizio Cimadamore]

> This PR contains the API and implementation changes for JEP-424 [1]. A more detailed description of such changes, to avoid repetitions during the review process, is included as a separate comment.
> 
> [1] - https://openjdk.java.net/jeps/424

Maurizio Cimadamore has updated the pull request incrementally with two additional commits since the last revision:

 - Update src/java.base/share/classes/jdk/internal/misc/X-ScopedMemoryAccess.java.template
   
   Co-authored-by: ExE Boss <3889017+ExE-Boss at users.noreply.github.com>
 - Tweak support for Linker lookup
   Improve javadoc of SymbolLookup

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7888/files
  - new: https://git.openjdk.java.net/jdk/pull/7888/files/d1fcf012..dc309e8b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7888&range=35
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7888&range=34-35

  Stats: 159 lines in 14 files changed: 96 ins; 8 del; 55 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7888.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7888/head:pull/7888

PR: https://git.openjdk.java.net/jdk/pull/7888