Add some more comments to UsageFile.
authorAustin Seipp <aseipp@pobox.com>
Thu, 22 Aug 2013 22:32:27 +0000 (17:32 -0500)
committerAustin Seipp <aseipp@pobox.com>
Thu, 22 Aug 2013 22:33:01 +0000 (17:33 -0500)
commitb6a572b4272274efe117d5e04f4b9d49e124009c
tree35a7c9a85f8bc246869beb2f32b948270b3ce8a0
parent3310068c0df0eb694aa7395854fb3a5594884369
Add some more comments to UsageFile.

This brings them up to date with the changes in #8144.

Signed-off-by: Austin Seipp <aseipp@pobox.com>
compiler/main/HscTypes.lhs