obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
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if you have obtained the source via the command 'git clone',
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1 files changed, 39 insertions, 0 deletions

diff --git a/gcc/testsuite/gfortran.dg/used_types_7.f90 b/gcc/testsuite/gfortran.dg/used_types_7.f90
new file mode 100644
index 000000000..91354005d
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/used_types_7.f90
@@ -0,0 +1,39 @@
+! { dg-do compile }
+! Tests the fix for a further regression caused by the
+! fix for PR28788 and posted as PR28908. The problem was
+! caused by the patch preventing interface derived types
+! from associating with identical derived types in the
+! containing namespaces.
+!
+! Contributed by HJ Lu  <hjl@lucon.org>
+!
+module bar
+  implicit none
+  public
+  type ESMF_Time
+    integer :: DD
+  end type
+end module bar
+
+module foo
+  use bar
+  implicit none
+  private
+  type ESMF_Clock
+    type(ESMF_Time)  :: CurrTime
+  end type
+  interface operator (+)
+    function add (x, y)
+      use bar
+      type(ESMF_Time) :: add
+      type(ESMF_Time), intent(in) :: x
+      type(ESMF_Time), intent(in) :: y
+    end function add
+  end interface
+contains
+  subroutine ESMF_ClockAdvance(clock)
+    type(ESMF_Clock), intent(inout) :: clock
+    clock%CurrTime = clock%CurrTime + clock%CurrTime
+  end subroutine ESMF_ClockAdvance
+end module foo
+! { dg-final { cleanup-modules "foo bar" } }