hg: panama/dev: 8202907: Consolidate the design and implementation of the nicl support.

[sundararajan.athijegannathan at oracle.com]

Changeset: f0e39674baa5
Author:    sundar
Date:      2018-07-06 23:16 +0530
URL:       http://hg.openjdk.java.net/panama/dev/rev/f0e39674baa5

8202907: Consolidate the design and implementation of the nicl support.
jextract misses varargs flag for callbacks generated for C pointer to function with no arguments.
Reviewed-by: henryjen

! src/jdk.jextract/share/classes/com/sun/tools/jextract/AsmCodeFactory.java
! test/jdk/com/sun/tools/jextract/JextractToolProviderTest.java
! test/jdk/com/sun/tools/jextract/Runner.java
+ test/jdk/com/sun/tools/jextract/globalFuncPointer.h
+ test/jdk/com/sun/tools/jextract/globalFuncPointer.java