Fixed failing test innodb.innodb-autoinc.test
Enabled innodb test suite

mysql-test/mysql-test-run.pl:
  Enabled innodb test suite
mysql-test/r/innodb-autoinc.result:
  Removed test as it exists in suite innodb
mysql-test/suite/innodb/t/disabled.def:
  Removed innodb-autoinc
mysql-test/suite/innodb/t/innodb-autoinc.test:
  Update to be able to run with plugin
mysql-test/t/innodb-autoinc.test:
  Removed test as it exists in suite innodb
sql/filesort.cc:
  Removed not used variable
sql/slave.cc:
  Remove compiler warnings
storage/pbxt/src/ha_pbxt.cc:
  Removed not used variable
storage/xtradb/dict/dict0crea.c:
  Fixed compiler warning about unsigned comparison
support-files/compiler_warnings.supp:
  Disable some not relevant warnings