hg: kulla/dev/langtools: More prep for event dispatch testing. Unify drop and eval event testing. Deepen drop testing.

[robert.field at oracle.com]

Changeset: f8bedc348233
Author:    rfield
Date:      2015-06-14 21:18 -0700
URL:       http://hg.openjdk.java.net/kulla/dev/langtools/rev/f8bedc348233

More prep for event dispatch testing. Unify drop and eval event testing.  Deepen drop testing.

! test/jdk/jshell/DropTest.java
! test/jdk/jshell/KullaTesting.java
! test/jdk/jshell/VariablesTest.java