[obv] Use existed/supported commands in mi-cmd-param-changed.exp

[Yao Qi <yao at codesourcery dot com>]

Hi,
'maint set show-debug-regs' is an i386 specific command, so it doesn't
exist on other ports, such as arm.  We'll see these errors in gdb.sum,

  ERROR: Undefined command "maint set show-debug-regs on".
  ERROR: Undefined command "maint set show-debug-regs off".

'set circular-trace-buffer' is not supported on ports other than x86
and x86_64.

This patch removes the test to remove the test to command
'maint set show-debug-regs', and replace 'set circular-trace-buffer'
with 'set remotecache' which exists on all ports.

I'll commit it in two days if no one has comments.

gdb/testsuite:

2012-11-19  Yao Qi  <yao@codesourcery.com>

	* gdb.mi/mi-cmd-param-changed.exp (test_command_param_changed):
	Don't test 'maint set show-debug-regs'.
	Use command 'set remotecache' instead of
	'set circular-trace-buffer'.
---
 gdb/testsuite/gdb.mi/mi-cmd-param-changed.exp |   12 +++++-------
 1 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/gdb/testsuite/gdb.mi/mi-cmd-param-changed.exp b/gdb/testsuite/gdb.mi/mi-cmd-param-changed.exp
index 8c2195c..7786f90 100644
--- a/gdb/testsuite/gdb.mi/mi-cmd-param-changed.exp
+++ b/gdb/testsuite/gdb.mi/mi-cmd-param-changed.exp
@@ -52,7 +52,7 @@ proc test_command_param_changed { } { with_test_prefix "cmd param" {
 	"\"set scheduler-locking stepr\" no event"
 
 
-    foreach command { "circular-trace-buffer" "check type" } {
+    foreach command { "remotecache" "check type" } {
 
 	# The default value of each command option may be different, so we first
 	# set it to 'off', and this may or may not trigger MI notification.
@@ -81,12 +81,10 @@ proc test_command_param_changed { } { with_test_prefix "cmd param" {
     }
 
     # No notification is emitted for 'maint set' commands.
-    foreach command { "profile" "show-debug-regs" } {
-	foreach boolean_opt { "on" "off" } {
-	    mi_gdb_test "maint set ${command} ${boolean_opt}" \
-		"\\&\"maint set ${command} ${boolean_opt}\\\\n\"\r\n\\^done" \
-		"\"maint set ${command} ${boolean_opt}\""
-	}
+    foreach boolean_opt { "on" "off" } {
+	mi_gdb_test "maint set profile ${boolean_opt}" \
+	    "\\&\"maint set profile ${boolean_opt}\\\\n\"\r\n\\^done" \
+	    "\"maint set profile ${boolean_opt}\""
     }
 
     # Full command parameters are included in the notification when a
-- 
1.7.7.6