hg: panama/dev: 8237761: Add way to determine the current ABI

[jorn.vernee at oracle.com]

Changeset: 957238184f10
Author:    jvernee
Date:      2020-01-23 15:47 +0100
URL:       https://hg.openjdk.java.net/panama/dev/rev/957238184f10

8237761: Add way to determine the current ABI
Reviewed-by: mcimadamore

! src/jdk.incubator.foreign/share/classes/jdk/incubator/foreign/SystemABI.java
! src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/abi/aarch64/AArch64ABI.java
! src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/abi/x64/sysv/SysVx64ABI.java
! src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/abi/x64/windows/Windowsx64ABI.java
! test/jdk/java/foreign/NativeTestHelper.java