fixes for buildbot:

update test results
fix compilation failure on windows
fix for ps-protocol

mysql-test/r/plugin.result:
  make sure the PS handle is closed
mysql-test/t/plugin.test:
  make sure the PS handle is closed
sql/mysqld.cc:
  compilation failure: lable without a statement.
sql/sql_plugin.cc:
  make plugin lock and plugin unlock use the same format of the dbug info string.
  print the ref_count *after* the lock and *after* the unlock.

mysql-test/r/plugin.result

@@ -102,4 +102,7 @@ SET SQL_MODE='';
 CREATE TABLE t1 (a int) ENGINE=example ULL=10000000000000000000 one_or_two='ttt' YESNO=SSS;
 ERROR HY000: Incorrect value '10000000000000000000' for option 'ULL'
 SET @@SQL_MODE=@OLD_SQL_MODE;
+select 1;
+1
+1
 UNINSTALL PLUGIN example;

mysql-test/suite/funcs_1/r/is_columns_mysql.result

@@ -49,7 +49,7 @@ NULL	mysql	event	modified	9	0000-00-00 00:00:00	NO	timestamp	NULL	NULL	NULL	NULL
 NULL	mysql	event	name	2		NO	char	64	192	NULL	NULL	utf8	utf8_general_ci	char(64)	PRI		select,insert,update,references	
 NULL	mysql	event	on_completion	14	DROP	NO	enum	8	24	NULL	NULL	utf8	utf8_general_ci	enum('DROP','PRESERVE')			select,insert,update,references	
 NULL	mysql	event	originator	17	NULL	NO	int	NULL	NULL	10	0	NULL	NULL	int(10) unsigned			select,insert,update,references	
-NULL	mysql	event	sql_mode	15		NO	set	488	1464	NULL	NULL	utf8	utf8_general_ci	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH')			select,insert,update,references	
+NULL	mysql	event	sql_mode	15		NO	set	494	1482	NULL	NULL	utf8	utf8_general_ci	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH')			select,insert,update,references	
 NULL	mysql	event	starts	11	NULL	YES	datetime	NULL	NULL	NULL	NULL	NULL	NULL	datetime			select,insert,update,references	
 NULL	mysql	event	status	13	ENABLED	NO	enum	18	54	NULL	NULL	utf8	utf8_general_ci	enum('ENABLED','DISABLED','SLAVESIDE_DISABLED')			select,insert,update,references	
 NULL	mysql	event	time_zone	18	SYSTEM	NO	char	64	64	NULL	NULL	latin1	latin1_swedish_ci	char(64)			select,insert,update,references	
@@ -124,7 +124,7 @@ NULL	mysql	proc	returns	10	NULL	NO	longblob	4294967295	4294967295	NULL	NULL	NULL
 NULL	mysql	proc	security_type	8	DEFINER	NO	enum	7	21	NULL	NULL	utf8	utf8_general_ci	enum('INVOKER','DEFINER')			select,insert,update,references	
 NULL	mysql	proc	specific_name	4		NO	char	64	192	NULL	NULL	utf8	utf8_general_ci	char(64)			select,insert,update,references	
 NULL	mysql	proc	sql_data_access	6	CONTAINS_SQL	NO	enum	17	51	NULL	NULL	utf8	utf8_general_ci	enum('CONTAINS_SQL','NO_SQL','READS_SQL_DATA','MODIFIES_SQL_DATA')			select,insert,update,references	
-NULL	mysql	proc	sql_mode	15		NO	set	488	1464	NULL	NULL	utf8	utf8_general_ci	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH')			select,insert,update,references	
+NULL	mysql	proc	sql_mode	15		NO	set	494	1482	NULL	NULL	utf8	utf8_general_ci	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH')			select,insert,update,references	
 NULL	mysql	proc	type	3	NULL	NO	enum	9	27	NULL	NULL	utf8	utf8_general_ci	enum('FUNCTION','PROCEDURE')	PRI		select,insert,update,references	
 NULL	mysql	procs_priv	Db	2		NO	char	64	192	NULL	NULL	utf8	utf8_bin	char(64)	PRI		select,insert,update,references	
 NULL	mysql	procs_priv	Grantor	6		NO	char	77	231	NULL	NULL	utf8	utf8_bin	char(77)	MUL		select,insert,update,references	
@@ -330,7 +330,7 @@ NULL	mysql	event	starts	datetime	NULL	NULL	NULL	NULL	datetime
 NULL	mysql	event	ends	datetime	NULL	NULL	NULL	NULL	datetime
 3.0000	mysql	event	status	enum	18	54	utf8	utf8_general_ci	enum('ENABLED','DISABLED','SLAVESIDE_DISABLED')
 3.0000	mysql	event	on_completion	enum	8	24	utf8	utf8_general_ci	enum('DROP','PRESERVE')
-3.0000	mysql	event	sql_mode	set	488	1464	utf8	utf8_general_ci	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH')
+3.0000	mysql	event	sql_mode	set	494	1482	utf8	utf8_general_ci	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH')
 3.0000	mysql	event	comment	char	64	192	utf8	utf8_bin	char(64)
 NULL	mysql	event	originator	int	NULL	NULL	NULL	NULL	int(10) unsigned
 1.0000	mysql	event	time_zone	char	64	64	latin1	latin1_swedish_ci	char(64)
@@ -405,7 +405,7 @@ NULL	mysql	ndb_binlog_index	schemaops	bigint	NULL	NULL	NULL	NULL	bigint(20) unsi
 3.0000	mysql	proc	definer	char	77	231	utf8	utf8_bin	char(77)
 NULL	mysql	proc	created	timestamp	NULL	NULL	NULL	NULL	timestamp
 NULL	mysql	proc	modified	timestamp	NULL	NULL	NULL	NULL	timestamp
-3.0000	mysql	proc	sql_mode	set	488	1464	utf8	utf8_general_ci	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH')
+3.0000	mysql	proc	sql_mode	set	494	1482	utf8	utf8_general_ci	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH')
 3.0000	mysql	proc	comment	char	64	192	utf8	utf8_bin	char(64)
 3.0000	mysql	proc	character_set_client	char	32	96	utf8	utf8_bin	char(32)
 3.0000	mysql	proc	collation_connection	char	32	96	utf8	utf8_bin	char(32)

mysql-test/t/plugin.test

@@ -106,13 +106,18 @@ alter table t1 change a a int complex='c,c,c';
 show create table t1;
 drop table t1;
 
-
 --echo #illegal value error
 SET SQL_MODE='';
 --error ER_BAD_OPTION_VALUE
 CREATE TABLE t1 (a int) ENGINE=example ULL=10000000000000000000 one_or_two='ttt' YESNO=SSS;
-
 SET @@SQL_MODE=@OLD_SQL_MODE;
 
-
+#
+# The only preparable statement above was CREATE TABLE. 
+# We need to prepare another statement here to force the
+# previous one to be deallocated (mysqltest reuses the same handle)
+# and to unlock all thread-local plugin locks. Otherwise it won't
+# uninstall.
+#
+select 1;
 UNINSTALL PLUGIN example;

sql/mysqld.cc

@@ -2683,8 +2683,9 @@ bugs.\n");
 
 end:
 #ifndef __WIN__
-  /* On Windows, do not terminate, but pass control to exception filter */
   exit(1);
+#else
+  /* On Windows, do not terminate, but pass control to the exception filter */;
 #endif
 }
 

sql/sql_plugin.cc

@@ -828,7 +828,7 @@ static plugin_ref intern_plugin_lock(LEX *lex, plugin_ref rc CALLER_INFO_PROTO)
     *plugin= pi;
 #endif
     pi->ref_count++;
-    DBUG_PRINT("info",("thd: 0x%lx  plugin: \"%s\"  ref_count: %d",
+    DBUG_PRINT("lock",("thd: 0x%lx  plugin: \"%s\" LOCK ref_count: %d",
                        (long) current_thd, pi->name.str, pi->ref_count));
 
     if (lex)
@@ -1135,8 +1135,6 @@ static void intern_plugin_unlock(LEX *lex, plugin_ref plugin)
   my_free((uchar*) plugin, MYF(MY_WME));
 #endif
 
-  DBUG_PRINT("info",("unlocking plugin, name= %s, ref_count= %d",
-                     pi->name.str, pi->ref_count));
   if (lex)
   {
     /*
@@ -1156,6 +1154,9 @@ static void intern_plugin_unlock(LEX *lex, plugin_ref plugin)
   DBUG_ASSERT(pi->ref_count);
   pi->ref_count--;
 
+  DBUG_PRINT("lock",("thd: 0x%lx  plugin: \"%s\" UNLOCK ref_count: %d",
+                     (long) current_thd, pi->name.str, pi->ref_count));
+
   if (pi->state == PLUGIN_IS_DELETED && !pi->ref_count)
     reap_needed= true;