test suite fixes

libmysqld/lib_sql.cc:
  * don't overwrite my_progname in embedded
  * this memroot is sometimes freed by the caller, outside of THD context
mysql-test/t/user_var.test:
  typo: duplicate line

libmysqld/lib_sql.cc

@@ -520,7 +520,8 @@ int init_embedded_server(int argc, char **argv, char **groups)
   if (!groups)
     groups= (char**) fake_groups;
 
-  my_progname= (char *)"mysql_embedded";
+  if (!my_progname)
+    my_progname= (char *)"mysql_embedded";
 
   /*
     Perform basic logger initialization logger. Should be called after
@@ -907,7 +908,7 @@ int Protocol::begin_dataset()
     return 1;
   alloc= &data->alloc;
   /* Assume rowlength < 8192 */
-  init_alloc_root(alloc, 8192, 0, MYF(MY_THREAD_SPECIFIC));
+  init_alloc_root(alloc, 8192, 0, MYF(0));
   alloc->min_malloc= sizeof(MYSQL_ROWS);
   return 0;
 }

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

@@ -222,10 +222,12 @@ def	information_schema	PLUGINS	PLUGIN_TYPE_VERSION	5		NO	varchar	20	60	NULL	NULL
 def	information_schema	PLUGINS	PLUGIN_VERSION	2		NO	varchar	20	60	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(20)				
 def	information_schema	PROCESSLIST	COMMAND	5		NO	varchar	16	48	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(16)				
 def	information_schema	PROCESSLIST	DB	4	NULL	YES	varchar	64	192	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(64)				
+def	information_schema	PROCESSLIST	EXAMINED_ROWS	14	0	NO	int	NULL	NULL	10	0	NULL	NULL	NULL	int(7)				
 def	information_schema	PROCESSLIST	HOST	3		NO	varchar	64	192	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(64)				
 def	information_schema	PROCESSLIST	ID	1	0	NO	bigint	NULL	NULL	19	0	NULL	NULL	NULL	bigint(4)				
 def	information_schema	PROCESSLIST	INFO	8	NULL	YES	longtext	4294967295	4294967295	NULL	NULL	NULL	utf8	utf8_general_ci	longtext				
 def	information_schema	PROCESSLIST	MAX_STAGE	11	0	NO	tinyint	NULL	NULL	3	0	NULL	NULL	NULL	tinyint(2)				
+def	information_schema	PROCESSLIST	MEMORY_USED	13	0	NO	int	NULL	NULL	10	0	NULL	NULL	NULL	int(7)				
 def	information_schema	PROCESSLIST	PROGRESS	12	0.000	NO	decimal	NULL	NULL	7	3	NULL	NULL	NULL	decimal(7,3)				
 def	information_schema	PROCESSLIST	STAGE	10	0	NO	tinyint	NULL	NULL	3	0	NULL	NULL	NULL	tinyint(2)				
 def	information_schema	PROCESSLIST	STATE	7	NULL	YES	varchar	64	192	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(64)				
@@ -704,6 +706,8 @@ NULL	information_schema	PROCESSLIST	TIME_MS	decimal	NULL	NULL	NULL	NULL	decimal(
 NULL	information_schema	PROCESSLIST	STAGE	tinyint	NULL	NULL	NULL	NULL	tinyint(2)
 NULL	information_schema	PROCESSLIST	MAX_STAGE	tinyint	NULL	NULL	NULL	NULL	tinyint(2)
 NULL	information_schema	PROCESSLIST	PROGRESS	decimal	NULL	NULL	NULL	NULL	decimal(7,3)
+NULL	information_schema	PROCESSLIST	MEMORY_USED	int	NULL	NULL	NULL	NULL	int(7)
+NULL	information_schema	PROCESSLIST	EXAMINED_ROWS	int	NULL	NULL	NULL	NULL	int(7)
 3.0000	information_schema	REFERENTIAL_CONSTRAINTS	CONSTRAINT_CATALOG	varchar	512	1536	utf8	utf8_general_ci	varchar(512)
 3.0000	information_schema	REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA	varchar	64	192	utf8	utf8_general_ci	varchar(64)
 3.0000	information_schema	REFERENTIAL_CONSTRAINTS	CONSTRAINT_NAME	varchar	64	192	utf8	utf8_general_ci	varchar(64)

mysql-test/t/user_var.test

@@ -458,7 +458,6 @@ DROP TABLE t1;
 
 # Execute twice so number stablizes a bit
 let $tmp= `select memory_used from information_schema.processlist`;
-let $tmp= `select memory_used from information_schema.processlist`;
 set @var= repeat('a',20000);
 let $tmp2= `select memory_used from information_schema.processlist`;
 --disable_query_log