hg: panama/dev: 8209496: Minimize allocation in NativeInvoker::invokeNormal

[maurizio.cimadamore at oracle.com]

Changeset: 6d24d209328f
Author:    mcimadamore
Date:      2018-08-15 15:14 +0100
URL:       http://hg.openjdk.java.net/panama/dev/rev/6d24d209328f

8209496: Minimize allocation in NativeInvoker::invokeNormal
* Add helper factory to create a BounderPointer out of a Java long heap array
* avoid unnecessary pointer and Java array allocation in NativeInvoker

! src/java.base/share/classes/jdk/internal/foreign/NativeInvoker.java
! src/java.base/share/classes/jdk/internal/foreign/Util.java
! src/java.base/share/classes/jdk/internal/foreign/memory/BoundedPointer.java