hg: jigsaw/jake/langtools: fill in missing implementations

[jonathan . gibbons]

Changeset: 7ee81202a226
Author:    jjg
Date:      2016-02-16 17:17 -0800
URL:       http://hg.openjdk.java.net/jigsaw/jake/langtools/rev/7ee81202a226

fill in missing implementations

! src/jdk.jdeps/share/classes/com/sun/tools/classfile/ClassWriter.java
! src/jdk.jdeps/share/classes/com/sun/tools/javap/AttributeWriter.java