[GHC] #4268: Warning for ANN pragmas when GHCi is not supported

[GHC]

#4268: Warning for ANN pragmas when GHCi is not supported
-------------------------------+-------------------------------------------
        Reporter:  simonmar    |            Owner:
            Type:  bug         |           Status:  new
        Priority:  high        |        Milestone:  7.8.1
       Component:  Compiler    |          Version:  7.0.4
      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:              |
-------------------------------+-------------------------------------------

Comment (by nomeata):

 According to #8312, Annotations will require a `-X` flag in the future,
 and in a non-GHCi-compiler, we still get an error (not a warning),
 requiring distributions to patch annotations out of the code. In light of
 #8312, do you still think that it should be a warning, and not an error?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4268#comment:11>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler