8196308: Update tests AllLineLocations and ClassesByName to use TestScaffold instead of JDIScaffold. Summary: This is a subtask of JDK-4916621: update tests still using JDIScaffold to us TestScaffold instead. Reviewed-by: sspitsyn, gthornbr

^build/
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nbproject/private/
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^.src-rev$
^.jib/
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test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
.*/JTreport/.*
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