hg: panama/panama/jdk: Fix parsing descriptor of function without arguments

[henry.jen at oracle.com]

Changeset: e88d76c6d03b
Author:    henryjen
Date:      2016-05-25 08:29 -0700
URL:       http://hg.openjdk.java.net/panama/panama/jdk/rev/e88d76c6d03b

Fix parsing descriptor of function without arguments

! src/java.base/share/classes/jdk/internal/nicl/types/Descriptor.java
! test/java/nicl/types/DescriptorTest.java