[GHC] #8434: dynflag dependency addition in TcRnDriver is not needed anymore

[GHC]

#8434: dynflag dependency addition in TcRnDriver is not needed anymore
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        Reporter:  errge       |            Owner:
            Type:  task        |           Status:  patch
        Priority:  normal      |        Milestone:  7.8.1
       Component:  Compiler    |          Version:  7.6.3
      Resolution:              |         Keywords:
Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple             |       Difficulty:  Easy (less than 1 hour)
 Type of failure:  Other       |       Blocked By:
       Test Case:              |  Related Tickets:
        Blocking:              |
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Old description:

> The removed parts of the tcRnImports function in the attached patch says
> that there is a check in LoadIface.loadInterface and this is why it's
> needed to add the plugin dependencies to the EPS.
>
> But actually [[GhcFile(compiler/iface/LoadIface.lhs#L227)]] says that the
> check is no longer there.

New description:

 The removed parts of the `tcRnImports` function in the attached patch says
 that there is a check in `LoadIface.loadInterface` and this is why it's
 needed to add the plugin dependencies to the EPS.

 But actually [[GhcFile(compiler/iface/LoadIface.lhs#L227)]] says that the
 check is no longer there.

--

Comment (by simonpj):

 Yes ok I agree.  Austin, please apply.  (errge, you did validate didn't
 you)

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8434#comment:2>
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