RFR: 8296477: Foreign linker implementation update following JEP 434 [v2]

[Jorn Vernee]

> Pull in linker implementation changes, that include non-trivial changes to VM code, from the panama-foreign repo into the main JDK.
> 
> This is split off from the main JEP integration to make reviewing easier.
> 
> This includes the following patches:
> 
> 1. https://github.com/openjdk/panama-foreign/pull/698
> 2. https://github.com/openjdk/panama-foreign/pull/699
> 3. (part of) https://github.com/openjdk/panama-foreign/pull/731
> 4. https://github.com/openjdk/panama-foreign/pull/740
> 5. https://github.com/openjdk/panama-foreign/pull/746
> 6. https://github.com/openjdk/panama-foreign/pull/742
> 7. https://github.com/openjdk/panama-foreign/pull/743
> 
> Probably the biggest change to the code comes from replacing `VMReg` - which can not represent offsets into the stack that are not a multiple of the VM's stack slot size (32-bits) - with the new `VMStorage` class, which can describe byte offsets into the stack, as well as having a register mask to indicate only certain register segments.
> 
> The only part of 3. that is in this PR is the part that turns the `VMStorage` class in Java into a record.
> 
> Please refer to the PR of each individual patch for a more detailed description.

Jorn Vernee has updated the pull request incrementally with two additional commits since the last revision:

 - Work around x86 failures
 - Review comments

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/11019/files
  - new: https://git.openjdk.org/jdk/pull/11019/files/a40080e6..9e13922d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=11019&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=11019&range=00-01

  Stats: 19 lines in 8 files changed: 8 ins; 0 del; 11 mod
  Patch: https://git.openjdk.org/jdk/pull/11019.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11019/head:pull/11019

PR: https://git.openjdk.org/jdk/pull/11019