[GHC] #9764: Home package modules silently override available modules from package database

[GHC]

#9764: Home package modules silently override available modules from package
database
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              Reporter:  ezyang      |            Owner:  ezyang
                  Type:  feature     |           Status:  new
  request                            |        Milestone:
              Priority:  normal      |          Version:  7.9
             Component:  Compiler    |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  GHC         |  Related Tickets:
  accepts invalid program            |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by ezyang):

 In GHC 7.10, there will be TWO ways to do the specific use-case you're
 asking for!

 The first is the new `-prelude-is` flag #9499, which will let you set
 Prelude to be a module not named Prelude.

 The second is package renaming #9375, which means you can include base but
 rename Prelude to another name BasePrelude.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9764#comment:5>
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