Enabled VARCHAR testing for innodb

NOTE: innodb.test currently fails becasue of a bug in InnoDB. 
I have informed Heikki about this and expect him to fix this ASAP


mysql-test/include/varchar.inc:
  Move handler dependent tests to the specific handler (myisam, bdb, innodb)
mysql-test/r/innodb.result:
  Added varchar tests
mysql-test/r/myisam.result:
  Update results
mysql-test/t/bdb.test:
  Move handler dependent tests to the specific handler (myisam, bdb, innodb)
mysql-test/t/innodb.test:
  Enabled VARCHAR testing
mysql-test/t/myisam.test:
  Move handler dependent tests to the specific handler (myisam, bdb, innodb)
sql/sql_parse.cc:
  Indentation fixes
sql/sql_table.cc:
  Fixed bug introduced when doing cleanup