Bug 92233

In its current form (after implementing marker methods) a problem has surfaced
when profiling part of application defined by root methods. Marker methods are
instrumented and measured and results are visible to the user in live results as
well as a part of snapshot. Generally, the user shouldn't be aware of the fact
that marker methods were executed - they should be used only for categorization
and overview. So they must be effectively removed from live results and
snapshot. This requires partial rewrite of the CallGraphBuilder infrastructure -
might be combined with the effort to rewrite profiling points.
Also, it must be considered, how to present results of profiling part of
application with marker methods applied - should the overview be given on the
whole application or should be the overview calculated only in regard to the
root methods specified? (eg. how big portion of time spent in a method belongs
to a specific category etc.)