[RFA] Add watchpoint test with both condition and thread keywords

[Keith Seitz <keiths@redhat.com>]

Hi,

While attempting to fix up my constify parse_exp_1 mini-patch, I 
discovered the branch of watch_command_1 which does "*tok = '\0';" (evil 
as it is) is completely untested.

So I'm adding one to aid my hacking.

Keith

testsuite/ChangeLog
2013-03-08  Keith Seitz  <keiths@redhat.com>

	* watchpoint.exp: Add test using both condition and thread.

Index: testsuite/gdb.base/watchpoint.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/watchpoint.exp,v
retrieving revision 1.61
diff -u -p -r1.61 watchpoint.exp
--- testsuite/gdb.base/watchpoint.exp	1 Jan 2013 06:33:26 -0000	1.61
+++ testsuite/gdb.base/watchpoint.exp	8 Mar 2013 18:33:39 -0000
@@ -808,6 +808,10 @@ proc test_no_hw_watchpoints {} {
  	"Watchpoint \[0-9\]*: ival3.*" \
  	"set slow conditional watch"

+    gdb_test "watch ival3 if  count > 1  thread 1 " \
+         "Watchpoint \[0-9\]*: ival3.*" \
+         "set slow condition watch w/thread"
+
      gdb_test "continue" \
  	"Watchpoint \[0-9\]*: ival3.*Old value = 1.*New value = 2.*" \
  	"trigger slow conditional watch"