hg: panama/dev: 8235406: Descriptor parser fails with leading zeros in layout names

[henry.jen at oracle.com]

Changeset: 463e2d316c91
Author:    henryjen
Date:      2019-12-09 08:42 -0800
URL:       https://hg.openjdk.java.net/panama/dev/rev/463e2d316c91

8235406: Descriptor parser fails with leading zeros in layout names
Reviewed-by: sundar, mcimadamore

! src/java.base/share/classes/jdk/internal/foreign/memory/DescriptorParser.java
+ test/jdk/com/sun/tools/jextract/test8235406/T8235406.java
+ test/jdk/com/sun/tools/jextract/test8235406/libT8235406.c
+ test/jdk/com/sun/tools/jextract/test8235406/t8235406.h