[PATCH OBV] set print symbol off in py-value.exp and scm-value.exp

[Yao Qi <yao@codesourcery.com>]

I see the following fails on arm-none-eabi target,

print sn^M
$14 = 0x0 <_ftext>^M
(gdb) FAIL: gdb.python/py-value.exp: print sn

print sn^M
$14 = 0x0 <_ftext>^M
(gdb) FAIL: gdb.guile/scm-value.exp: print sn

as <_ftext> is unexpected.  This patch is to set print symbol off to
avoid printing this.  It is obvious and I'll commit it in two days.

gdb/testsuite:

2014-08-22  Yao Qi  <yao@codesourcery.com>

	* gdb.guile/scm-value.exp (test_lazy_strings): Set print
	symbol off.
	* gdb.python/py-value.exp (test_lazy_strings): Likewise.
---
 gdb/testsuite/gdb.guile/scm-value.exp | 2 ++
 gdb/testsuite/gdb.python/py-value.exp | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/gdb/testsuite/gdb.guile/scm-value.exp b/gdb/testsuite/gdb.guile/scm-value.exp
index 91e1a56..3641f75 100644
--- a/gdb/testsuite/gdb.guile/scm-value.exp
+++ b/gdb/testsuite/gdb.guile/scm-value.exp
@@ -219,6 +219,8 @@ proc test_lazy_strings {} {
 	"= const char \*." "Test lazy-string type name equality"
     gdb_test "gu (print (value-type sptr))" \
 	"= const char \*." "Test string type name equality"
+    # Prevent symbol on address 0x0 being printed.
+    gdb_test_no_output "set print symbol off"
     gdb_test "print sn" "0x0"
     gdb_scm_test_silent_cmd "gu (define snptr (history-ref 0))" \
 	"lazy strings: get snptr value from history"
diff --git a/gdb/testsuite/gdb.python/py-value.exp b/gdb/testsuite/gdb.python/py-value.exp
index 0728266..0d18bef 100644
--- a/gdb/testsuite/gdb.python/py-value.exp
+++ b/gdb/testsuite/gdb.python/py-value.exp
@@ -302,7 +302,11 @@ proc test_lazy_strings {} {
   gdb_py_test_silent_cmd "python lstr = sptr.lazy_string()" "Aquire lazy string" 1
   gdb_test "python print (lstr.type)" "const char \*." "Test lazy-string type name equality"
   gdb_test "python print (sptr.type)" "const char \*." "Test string type name equality"
+
+  # Prevent symbol on address 0x0 being printed.
+  gdb_test_no_output "set print symbol off"
   gdb_test "print sn" "0x0"
+
   gdb_py_test_silent_cmd "python snptr = gdb.history (0)" "Get value from history" 1
   gdb_test "python snstr = snptr.lazy_string(length=5)" ".*Cannot create a lazy string with address.*" "Test lazy string"
   gdb_py_test_silent_cmd "python snstr = snptr.lazy_string(length=0)" "Succesfully create a lazy string" 1
-- 
1.9.3