hg: amber/amber: update unit tests after last API change

[vicente.romero at oracle.com]

Changeset: 3ed5ed741025
Author:    vromero
Date:      2018-06-14 20:20 -0700
URL:       http://hg.openjdk.java.net/amber/amber/rev/3ed5ed741025

update unit tests after last API change

! src/java.base/share/classes/java/lang/constant/ConstantDescs.java
! test/jdk/java/lang/constant/CondyRefTest.java
! test/jdk/java/lang/constant/ConstantUtilsTest.java
! test/jdk/java/lang/constant/IndyRefTest.java
! test/jdk/java/lang/constant/MethodHandleRefTest.java