RFR: 8296477: Foreign linker implementation update following JEP 434 [v13]

[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 one additional commit since the last revision:

  Remove spurious imports

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/11019/files
  - new: https://git.openjdk.org/jdk/pull/11019/files/c153ffff..754faca2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=11019&range=12
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=11019&range=11-12

  Stats: 5 lines in 1 file changed: 0 ins; 5 del; 0 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