generalization of mtr to support suite.pm extensions:

* no automatic --loose-skip-innodb added by mtr based on the test name.
  instead loose-skip-innodb is now in the default_mysqld.cnf
* have_innodb_plugin.inc is changed to give a verbose "skip" message
  (instead of "require: true")
* My::Suite class. It's support in mtr, and everywhere
* support for suite.pm
* when sorting tests, take combinations into account
* support for SUITENAME_COMBINATIONS
* no special treatment for innodb_plugin in mtr_cases.pm
* two special pre-created config groups: ENV and OPT
* allow option names to start from #
* allow magic option to have an argument
* remove dead code
* fix @-substitution to works as expected
* new processes take the value of $opt_verbose automatically, no need to pass it to a constructor
* innodb_plugin suite uses suite.pm and combinations file to test as much as possible
  (innodb plugin, xtradb plugin, xtradb static - whatever available)
* besides test-master.opt and test-slave.opt a test.opt file is also
  loaded, both for master and slave
* .opt files for all included files are loaded too
* progress report in the xterm titlebar

mysql-test/include/default_my.cnf

@@ -6,9 +6,6 @@
 # Run the master.sh script before starting this process
 #!run-master-sh
 
-log-bin=                 master-bin
-
-
 [mysqlbinlog]
 disable-force-if-open
 

mysql-test/include/default_mysqld.cnf

@@ -13,9 +13,10 @@ key_buffer_size=            1M
 sort_buffer=                256K
 max_heap_table_size=        1M
 
+loose-skip-innodb
+loose-skip-pbxt
+
 loose-innodb_data_file_path=      ibdata1:10M:autoextend
 
 slave-net-timeout=120
 
-log-bin=mysqld-bin
-

mysql-test/include/have_binlog_format_mixed.opt

@@ -0,0 +1 @@
+--binlog-format=mixed

mysql-test/include/have_binlog_format_row.opt

@@ -0,0 +1 @@
+--binlog-format=row

mysql-test/include/have_binlog_format_statement.opt

@@ -0,0 +1,2 @@
+--binlog-format=statement
+

mysql-test/include/have_exampledb.inc

@@ -1,4 +0,0 @@
-disable_query_log;
---require r/true.require
-select (support = 'YES' or support = 'DEFAULT') as `TRUE` from information_schema.engines where engine = 'example';
-enable_query_log;

mysql-test/include/have_innodb.inc

@@ -1,4 +1,5 @@
-disable_query_log;
---require r/true.require
-select (support = 'YES' or support = 'DEFAULT' or support = 'ENABLED') as `TRUE` from information_schema.engines where engine = 'innodb';
-enable_query_log;
+if (!`SELECT count(*) FROM information_schema.engines WHERE
+      (support = 'YES' OR support = 'DEFAULT') AND
+      engine = 'innodb'`){
+  skip Needs innodb engine;
+}

mysql-test/include/have_innodb.opt

@@ -0,0 +1 @@
+--loose-innodb

mysql-test/include/have_innodb_plugin.inc

@@ -1,4 +1,5 @@
-disable_query_log;
---require r/true.require
-SELECT (plugin_library LIKE 'ha_innodb_plugin%' OR plugin_description LIKE '%xtradb%') AS `TRUE` FROM information_schema.plugins WHERE LOWER(plugin_name) = 'innodb' AND LOWER(plugin_status) = 'active';
-enable_query_log;
+if (!`SELECT COUNT(*) FROM INFORMATION_SCHEMA.PLUGINS
+         WHERE PLUGIN_NAME = 'innodb' AND PLUGIN_STATUS = 'active' AND
+              (PLUGIN_LIBRARY LIKE 'ha_innodb_plugin%' OR PLUGIN_DESCRIPTION LIKE '%xtradb%')`) {
+  skip Need InnoDB plugin or XtraDB;
+}

mysql-test/include/have_log_bin-master.opt

@@ -0,0 +1 @@
+--log-bin=master-bin

mysql-test/include/have_log_bin-slave.opt

@@ -0,0 +1 @@
+--log-bin=slave-bin

mysql-test/include/have_log_bin.inc

@@ -6,6 +6,8 @@
 #
 # source include/have_log_bin.inc;
 
+source include/not_embedded.inc;
+
 -- require r/have_log_bin.require
 disable_query_log;
 show variables like 'log_bin';

mysql-test/include/have_pbxt.opt

@@ -0,0 +1 @@
+--loose-pbxt