Adapt gdb.ada/variant_record_packed_array.exp to accept reordered components

Recent versions of GNAT are capable of reordering record components
to make their access for efficient. This patch adapts this test to
accept both cases (reordered or not).

gdb/testsuite/ChangeLog:

        * gdb.ada/variant_record_packed_array.exp: Adapt test to accept
        output with components being reordered.

Tested on x86_64-linux.

gdb/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2017-12-11  Joel Brobecker  <brobecker@adacore.com>
+
+	* gdb.ada/variant_record_packed_array.exp: Adapt test to accept
+	output with components being reordered.
+
 2017-12-11  Joel Brobecker  <brobecker@adacore.com>
 
 	* gdb.ada/pkd_arr_elem.exp: Adapt "print test" test to accept

gdb/testsuite/gdb.ada/variant_record_packed_array.exp

@@ -26,14 +26,26 @@ clean_restart ${testfile}
 set bp_location [gdb_get_line_number "START" ${testdir}/foo.adb]
 runto "foo.adb:$bp_location"
 
-gdb_test "print my_buffer" \
-    "= \\(size => 8, buffer => \\(1, 2, 3, 4, 5, 6, 7, 0\\), length => 8\\)" \
-    "print empty"
+set test "print my_buffer"
+gdb_test_multiple "$test" $test {
+    -re "= \\(size => 8, buffer => \\(1, 2, 3, 4, 5, 6, 7, 0\\), length => 8\\)\[\r\n\]+$gdb_prompt $" {
+        pass $test
+    }
+    -re "= \\(size => 8, length => 8, buffer => \\(1, 2, 3, 4, 5, 6, 7, 0\\)\\)\[\r\n\]+$gdb_prompt $" {
+        pass $test
+    }
+}
 
 gdb_test "print my_buffer'Address" \
     "= \\(system\\.address\\) $hex" \
     "print address"
 
-gdb_test "print {foo.octal_buffer} ($)" \
-    "= \\(size => 8, buffer => \\(1, 2, 3, 4, 5, 6, 7, 0\\), length => 8\\)" \
-    "print adress content"
+set test "print {foo.octal_buffer} ($)"
+gdb_test_multiple "$test" $test {
+    -re "= \\(size => 8, buffer => \\(1, 2, 3, 4, 5, 6, 7, 0\\), length => 8\\)\[\r\n\]+$gdb_prompt $" {
+        pass $test
+    }
+    -re "= \\(size => 8, length => 8, buffer => \\(1, 2, 3, 4, 5, 6, 7, 0\\)\\)\[\r\n\]+$gdb_prompt $" {
+        pass $test
+    }
+}