These tests launch the debuggee VM with -Xdebug -Xnoagent -Djava.compiler=NONE.
This caused the debuggees to run in interpreted mode which was the correct thing
to do before the advent of full speed debugging.
A separate bug has been filed and is being fixed which will cause the
debuggee VM to ignore the -Djava.compiler=NONE option in this case, as
is required by the JPDA spec. This will mean that the debuggees will now
run in the default mode which is -Xmixed. However, many/most/all debuggees
won't actually get compiled because of their transient characteristics.
We need to be able to run the debuggees in -Xcomp mode to assure that
they are compiled and that the tests work in this mode.