Add the list of outgoing edges per block to the hpcstruct debug output.  This helps to diagnose problems from parseapi.
Add the list of outgoing edges per block to the hpcstruct debug
output.  This helps to diagnose problems from parseapi.

HPCToolkit/hpctoolkit,HPCToolkit/hpctoolkit,HPCToolkit/hpctoolkit,HPCToolkit/hpctoolkit,HPCToolkit/hpctoolkit,HPCToolkit/hpctoolkit