- When this bug was corrected it changed the behavior 
  for data/index directory in the myisam test case.
- This patch moves the OS depending tests to a non-windows
  test file.


mysql-test/r/myisam.result:
  moved test from myisam to symlink; new result file
mysql-test/r/symlink.result:
  moved test from myisam to symlink; new result file
mysql-test/t/myisam.test:
  moved test from myisam to symlink
mysql-test/t/symlink.test:
  moved test from myisam to symlink