[GHC] #12112: Testsuite driver links from /tmp directory to .hi and .o files in source directory

[GHC]

#12112: Testsuite driver links from /tmp directory to .hi and .o files in source
directory
-------------------------------------+-------------------------------------
           Reporter:  thomie         |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Test Suite     |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:  #11980
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 This is a clear bug, but only shows up when the source directory is not
 clean. Perhaps from a validate run from before the `/tmp` testsuite patch.
 A user might also have been running some small sample programs in the
 source directory manually.

 The testsuite driver currently matches `<testname>*`.

 I'm not sure if a whitelist or blacklist solution is more future proof.

 These are all existing filetypes in the testsuite:
 {{{
 $ find . -name tests | xargs dir | grep -v stderr | grep -v stdout

                      Extension Files
 ====================================
                           .def (1)
                           .tix (1)
                          .hspp (2)
                          .ghci (1)
                       .primops (1)
                           .mix (1)
                           .gnp (2)
                            .so (1)
                            .md (2)
                            .hx (1)
                            .sh (1)
                          .test (1)
                           .cpp (2)
                            .mm (1)
                     .gitignore (7)
                             .m (2)
                           .asm (4)
                          .conf (2)
                             .h (19)
                           .hsc (10)
                           .lib (2)
                           .pkg (14)
                       .hs-boot (49)
                           .txt (5)
                          .hsig (14)
                         .cabal (37)
                           .gml (1)
                           .cmm (46)
                        .sample (14)
                             .c (66)
                           .dat (3)
                           .pgn (1)
                         .stdin (8)
                           .lhs (23)
                        .script (318)
                           .plt (2)
                             .T (311)
                                (370)
                              . (438)
                            .hs (5343)

                         Total: (10370)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12112>
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