hg: jdk/hs: 4916621: Update those still using JDIScaffold to use TestScaffold instead.

[chris.plummer at oracle.com]

Changeset: 1ecb986334cb
Author:    psomashe
Date:      2018-02-16 11:22 -0800
URL:       http://hg.openjdk.java.net/jdk/hs/rev/1ecb986334cb

4916621: Update those still using JDIScaffold to use TestScaffold instead.
Summary: update remaining tests using JDIScaffold to using TestScaffold instead.
Reviewed-by: sspitsyn, cjplummer

! test/jdk/com/sun/jdi/LaunchCommandLine.java
! test/jdk/com/sun/jdi/ModificationWatchpoints.java
! test/jdk/com/sun/jdi/UnpreparedByName.java
! test/jdk/com/sun/jdi/UnpreparedClasses.java
! test/jdk/com/sun/jdi/Vars.java