[project @ 2003-12-19 10:34:51 by simonpj]

[project @ 2003-12-19 10:34:51 by simonpj]
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  Precise locations for duplicate imports
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As a displacment activity I added reporting for duplicate imports
And more precise locations for the imports themselves.  For example:

  module T where

  import Maybe (isJust,isJust)
  import Maybe (isJust)

gives

Foo.hs:
    Warning: `isJust' is imported more than once:
	       imported from Maybe at Foo.hs:4:16-21
	       imported from Maybe at Foo.hs:3:23-28
	       imported from Maybe at Foo.hs:3:16-21