[PATCH] gdb.mi/mi2-console.exp: fix racy test (PR testsuite/12649)

[Marek Polacek <mpolacek@redhat.com>]

Use mi_gdb_test in place of gdb_test_multiple.  Note, that I had to 
add "()?" around the first \r\n.  The reason is that mi_gdb_test
appends \r\n itself, but the "*running,thread-id=all" part is not mandatory.

Tested with both read{,1}.  OK to apply?

2011-06-22  Marek Polacek  <mpolacek@redhat.com>

        * gdb.mi/mi2-console.exp: Replace gdb_test_multiple with mi_gdb_test.

--- gdb/gdb/testsuite/gdb.mi/mi2-console.exp.mp 2011-06-22 12:58:23.697574353 +0200
+++ gdb/gdb/testsuite/gdb.mi/mi2-console.exp    2011-06-22 13:16:48.577665717 +0200
@@ -48,11 +48,8 @@ if  { [gdb_compile "${srcdir}/${subdir}/
 mi_run_to_main
 
 # Next over the hello() call which will produce lots of output
-gdb_test_multiple "220-exec-next" "Started step over hello" {
-    -re "220\\^running\r\n(\\*running,thread-id=\"all\"\r\n)?$mi_gdb_prompt" {
-       pass "Started step over hello"
-    }
-}
+mi_gdb_test "220-exec-next" "220\\^running(\r\n)?(\\*running,thread-id=\"all\")?" \
+       "Started step over hello"
 
 if { ![target_info exists gdb,noinferiorio] } { 
     gdb_expect {