Add some missing files to extra-source-files.

Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>

Cabal/Cabal.cabal

@@ -74,6 +74,7 @@ extra-source-files:
   tests/PackageTests/BuildDeps/TargetSpecificDeps3/MyLibrary.hs
   tests/PackageTests/BuildDeps/TargetSpecificDeps3/lemon.hs
   tests/PackageTests/BuildDeps/TargetSpecificDeps3/my.cabal
+  tests/PackageTests/BuildTestSuiteDetailedV09/Dummy2.hs
   tests/PackageTests/CMain/Bar.hs
   tests/PackageTests/CMain/Setup.hs
   tests/PackageTests/CMain/foo.c
@@ -94,6 +95,9 @@ extra-source-files:
   tests/PackageTests/PreProcess/Foo.hsc
   tests/PackageTests/PreProcess/Main.hs
   tests/PackageTests/PreProcess/my.cabal
+  tests/PackageTests/PreProcessExtraSources/Foo.hsc
+  tests/PackageTests/PreProcessExtraSources/Main.hs
+  tests/PackageTests/PreProcessExtraSources/my.cabal
   tests/PackageTests/ReexportedModules/ReexportedModules.cabal
   tests/PackageTests/TemplateHaskell/dynamic/Exe.hs
   tests/PackageTests/TemplateHaskell/dynamic/Lib.hs
@@ -117,6 +121,9 @@ extra-source-files:
   tests/PackageTests/TestSuiteTests/LibV09/Lib.hs
   tests/PackageTests/TestSuiteTests/LibV09/tests/Deadlock.hs
   tests/Setup.hs
+  tests/Test/Distribution/Version.hs
+  tests/Test/Laws.hs
+  tests/Test/QuickCheck/Utils.hs
   tests/hackage/check.sh
   tests/hackage/download.sh
   tests/hackage/unpack.sh