This is an intermediate commit in a series of commits towards being able to
build the perf test suite from *.sib files.
Doing so will enable us to:
1. Stress the serialization pipeline.
2. Provide an interesting test case for verifying that executables compiled
from *.sib yield the same object files as if we compiled directly to *.o files.
Keep in mind this is a longer term effort that I am doing on the side.
