hg: panama/dev: 8208063: Jextract should generate empty interface for undefined/opaque record type

[henry.jen at oracle.com]

Changeset: 048a3e8d27ff
Author:    henryjen
Date:      2018-07-05 08:43 -0700
URL:       http://hg.openjdk.java.net/panama/dev/rev/048a3e8d27ff

8208063: Jextract should generate empty interface for undefined/opaque record type
Reviewed-by: sundar

! src/java.base/share/classes/java/foreign/NativeTypes.java
! src/java.base/share/classes/java/foreign/memory/LayoutType.java
! src/java.base/share/classes/jdk/internal/foreign/LayoutResolver.java
! src/java.base/share/classes/jdk/internal/foreign/memory/BoundedPointer.java
! src/java.base/share/classes/jdk/internal/foreign/memory/References.java
! src/jdk.jextract/share/classes/com/sun/tools/jextract/AsmCodeFactory.java
! src/jdk.jextract/share/classes/com/sun/tools/jextract/HeaderFile.java
! src/jdk.jextract/share/classes/com/sun/tools/jextract/Utils.java
! test/jdk/com/sun/tools/jextract/jclang-ffi/src/jdk/internal/clang/Index.java
! test/jdk/com/sun/tools/jextract/jclang-ffi/src/jdk/internal/clang/TranslationUnit.java
! test/jdk/com/sun/tools/jextract/testStruct/LibStructTest.java
! test/jdk/com/sun/tools/jextract/testStruct/StructTest.java
! test/jdk/com/sun/tools/jextract/testStruct/libStruct.c
! test/jdk/com/sun/tools/jextract/testStruct/struct.h