more fixes for test cases

mysql-test/suite/innodb/include/restart_and_reinit.inc:
  drop and recreate mysql.innodb* tables when deleting innodb table spaces
mysql-test/t/ssl_8k_key-master.opt:
  with loose- prefix ssl errors are ignored
sql-common/client.c:
  compiler warnings
sql/field.cc:
  use the new function
sql/item.cc:
  don't convert time to double or decimal via longlong,
  this loses sub-second part.
  Use dedicated functions.
sql/item.h:
  incorrect cast_to_int type for params
sql/item_strfunc.cc:
  use the new function
sql/lex.h:
  unused
sql/my_decimal.h:
  helper macro
sql/sql_plugin.cc:
  workaround for a compiler warning
sql/sql_yacc.yy:
  unused
sql/transaction.cc:
  fix the merge for SERVER_STATUS_IN_TRANS_READONLY protocol flag
storage/sphinx/CMakeLists.txt:
  compiler warnings

mysql-test/t/ssl_crl_clrpath.test

@@ -1,14 +1,7 @@
 # This test should work in embedded server after we fix mysqltest
 -- source include/not_embedded.inc
--- source include/have_ssl_communication.inc
 -- source include/have_openssl.inc
 
-let $crllen=`select length(trim(coalesce(@@ssl_crl, ''))) + length(trim(coalesce(@@ssl_crlpath, '')))`;
-if (!$crllen)
-{
-  skip Needs OpenSSL;
-}
-
 --echo # test --crl for the client : should connect
 --replace_result $MYSQL_TEST_DIR MYSQL_TEST_DIR
 --exec $MYSQL --ssl-ca=$MYSQL_TEST_DIR/std_data/crl-ca-cert.pem --ssl-key=$MYSQL_TEST_DIR/std_data/crl-client-valid-key.pem --ssl-cert=$MYSQL_TEST_DIR/std_data/crl-client-valid-cert.pem test --ssl-crl=$MYSQL_TEST_DIR/std_data/crl-client-revoked.crl -e "SHOW VARIABLES like '%ssl%';"