[GHC] #12140: Clarify Trac menus for new reporters

[GHC]

#12140: Clarify Trac menus for new reporters
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           Reporter:  goldfire       |             Owner:  hvr
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Trac & Git     |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 An officemate of mine rarely posts bugs here. He finds the interface to
 posting a bug confusing. I have to say I agree, if I consider the
 perspective of an infrequent reporter. (The reason he rarely posts bugs is
 that he rarely has bugs to post, not because of the confusing interface.)

 Specifically, there are many fields to fill out when posting a bug. Some
 of these are important to us (`Version` probably being the most). Some are
 better for developers to set (`Milestone`, `Test case`). Some are less
 important (`Operating System` for a bug in the type-checker). Some are
 essentially ignored (`Type of failure`, in my experience). Yet a new
 reporter doesn't know any of this and will diligently try to fill out them
 all.

 Can we label the fields as to importance somehow? Mark some as
 advanced/dev only? Make some available only after posting the ticket
 (`Test case`, `Differential`)?

 I don't suppose there are masses of people out there trying to post bugs
 and stymied by this problem, but I do think we can clean this up a bit.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12140>
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