Fully support make-style `.d` dependencies file output by making
following improvements:
* All correct dependency file render when cache hit for a different
output file location. The dependency file should list the correct
output path, not the stale output path for the initial compilation
* When enable a path prefix mapper to canonicalize the path, the
dependency file should render the input file correctly as the input
file path on disk.
rdar://132250067
