Including adding test in 5.5 requiring --big-test
flag from mysql-test-run.pl and also disabled
tests that fails.

mysql-test/collections/default.weekly:
  Added all tests requiring --big-test in alphabetical order
mysql-test/r/information_schema-big.result:
  Updated result
mysql-test/r/variables-big.result:
  updated results
mysql-test/t/disabled.def:
  Added tests that fails (has not been run
  regularly since they need --big-test)