Implemented RAII objects, initialized at target entry points, that
invoke tool-supplied callbacks. Updated status of target callbacks as
implemented.
Depends on D127365
Patch from John Mellor-Crummey <johnmc@rice.edu>
With contributions from:
Dhruva Chakrabarti <Dhruva.Chakrabarti@amd.com>
Jan-Patrick Lehr <janpatrick.lehr@amd.com>
Reviewed By: jdoerfert, dhruvachak, jplehr
Differential Revision: https://reviews.llvm.org/D127367