comma package:ghc-lib-parser

Command line options gathered from the -PModule.Name:stuff syntax are given to you as this type
Trailing ','
as a list separator
in a RdrName for a tuple
Used for (,,,), or @()#
Helper function used in the parser to add a comma location to an existing annotation.
Record in the eventlog when the given tool command starts and finishes, prepending the given String with "systool:", to easily be able to collect and process all the systool events. For those events to show up in the eventlog, you need to run GHC with -v2 or -ddump-timings.