hg: panama/dev: manual merge with nicl

[maurizio.cimadamore at oracle.com]

Changeset: 4d8350b52be0
Author:    mcimadamore
Date:      2018-05-25 09:55 +0100
URL:       http://hg.openjdk.java.net/panama/dev/rev/4d8350b52be0

manual merge with nicl

! src/java.base/share/classes/jdk/internal/nicl/types/BoundedPointer.java
! src/jdk.jextract/share/classes/com/sun/tools/jextract/AsmCodeFactory.java
+ test/jdk/com/sun/tools/jextract/StructTest.java