[lworld] RFR: 8249396: JNI function IsSameObject should apply the substitutability test for inline types [v2]

[Frederic Parain]

> Please review this patch which fix the implementation of the JNI function IsSameObject by performing a substitutability
> test when two references to inline type instances are passed in argument.
> Passed tests tiers 1 to 3 with Mach5.
> 
> Thank you,
> 
> Fred

Frederic Parain has updated the pull request incrementally with one additional commit since the last revision:

  Fix indent and add comment

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

Changes:
  - all: https://git.openjdk.java.net/valhalla/pull/108/files
  - new: https://git.openjdk.java.net/valhalla/pull/108/files/07a75e33..23dff562

Webrevs:
 - full: https://webrevs.openjdk.java.net/valhalla/108/webrev.01
 - incr: https://webrevs.openjdk.java.net/valhalla/108/webrev.00-01

  Stats: 22 lines in 1 file changed: 4 ins; 1 del; 17 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/108.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/108/head:pull/108

PR: https://git.openjdk.java.net/valhalla/pull/108