[foreign-memaccess+abi] RFR: Rename parameter names [v2]

[Per Minborg]

> This PR renames parameter names to be more consistent across all classes.

Per Minborg has updated the pull request incrementally with one additional commit since the last revision:

  Revert parameter naming in MS

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

Changes:
  - all: https://git.openjdk.org/panama-foreign/pull/726/files
  - new: https://git.openjdk.org/panama-foreign/pull/726/files/e6d6ce9a..671cac59

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=panama-foreign&pr=726&range=01
 - incr: https://webrevs.openjdk.org/?repo=panama-foreign&pr=726&range=00-01

  Stats: 28 lines in 2 files changed: 0 ins; 0 del; 28 mod
  Patch: https://git.openjdk.org/panama-foreign/pull/726.diff
  Fetch: git fetch https://git.openjdk.org/panama-foreign pull/726/head:pull/726

PR: https://git.openjdk.org/panama-foreign/pull/726