Make "--dump-cfg phase" dump the graphs for all instances of "phase.subphase", as the documentation implies it should.  Since this complicates the test of whether each graph should be dumped, I also short-circuited the most likely case, where no phases are to be dumped at all.
Make "--dump-cfg phase" dump the graphs for all instances of
"phase.subphase", as the documentation implies it should.  Since
this complicates the test of whether each graph should be dumped,
I also short-circuited the most likely case, where no phases are
to be dumped at all.


anddann/soot,plast-lab/soot,plast-lab/soot,plast-lab/soot,mbenz89/soot,anddann/soot,cfallin/soot,anddann/soot,mbenz89/soot,cfallin/soot,cfallin/soot,mbenz89/soot,cfallin/soot,xph906/SootNew,xph906/SootNew,anddann/soot,xph906/SootNew,xph906/SootNew,mbenz89/soot