[PATCH 2/3] Remove some GDB specific stuff from selftest.c

[Yao Qi <qiyaoltc@gmail.com>]

The next patch moves selftest.c to common/selftest.c, so that GDBserver
can use it as well.  However selftest.c uses something isn't "portable" on
GDB and GDBserver.

First, this patch removes QUIT.  I don't expect that we type ctrl-c during
self/unit tests, and each test shouldn't take long time.  Secondly, I
replace exception_fprintf and printf_filtered with debug_printf.  Verified
that unit tests still catch fails.

gdb:

2017-08-09  Yao Qi  <yao.qi@linaro.org>

	* selftest.c (run_tests): Don't call QUIT.  Call debug_printf
	instead of exception_fprintf and printf_filtered.
---
 gdb/selftest.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/gdb/selftest.c b/gdb/selftest.c
index 31d16af..eb7728b 100644
--- a/gdb/selftest.c
+++ b/gdb/selftest.c
@@ -44,8 +44,6 @@ run_tests (void)
 
   for (int i = 0; i < tests.size (); ++i)
     {
-      QUIT;
-
       TRY
 	{
 	  tests[i] ();
@@ -53,7 +51,7 @@ run_tests (void)
       CATCH (ex, RETURN_MASK_ERROR)
 	{
 	  ++failed;
-	  exception_fprintf (gdb_stderr, ex, _("Self test failed: "));
+	  debug_printf ("Self test failed: %s\n", ex.message);
 	}
       END_CATCH
 
@@ -62,7 +60,7 @@ run_tests (void)
       reinit_frame_cache ();
     }
 
-  printf_filtered (_("Ran %lu unit tests, %d failed\n"),
-		   (long) tests.size (), failed);
+  debug_printf ("Ran %lu unit tests, %d failed\n",
+		(long) tests.size (), failed);
 }
 } // namespace selftests
-- 
1.9.1