ART: Add JDWP trace to see how agent is attached

Tested with visual inspection of logcat following command:

adb root && \
adb shell stop && \
adb shell setprop dalvik.vm.extra-opts "-verbose:jdwp" &&\
adb shell start

Test: See above
Change-Id: I52c17f1b7b962d37d666e27abbc33b2b83fd9980
1 file changed