Commit testsuite part of r151322, omitted by mistake then.

        * gnat.dg/array7.ads: Include Signed_Integer_Type_Definition.

From-SVN: r152164

gcc/testsuite/gnat.dg/array7.ads

 package Array7 is
 
+   package Range_Subtype is
       type Arr is array (Positive range <>) of Integer;
       type Arr_Acc is access Arr;
 
       subtype My_Range is Integer range 1 .. 25;
+      function Get_Arr (Nbr : My_Range) return Arr_Acc;
+   end;
+
+   package Range_Type is
+
+      type My_Range is range 1 .. 25;
+      type Arr is array (My_Range range <>) of Integer;
+      type Arr_Acc is access Arr;
 
       function Get_Arr (Nbr : My_Range) return Arr_Acc;
+   end;
 
 end Array7;