rb://1263 Approved b Marko

Some InnoDB test cases that use DEBUG_SYNC are skipped during test
execution, apparently because some DEBUG_SYNC tests are not properly
cleaning up after themselves.
First, we found all nondeterminism test cases by review all tests that
use DEBUG_SYNC and test each of them like this:
./mtr --mem --repeat=100 --parallel=4 test_name{,,,}.
Most of the problem case missed SET DEBUG_SYNC = 'RESET' to clean up
DEBUG SYNC points, this causes problem.
For fixing it, we added all missed SET DEBUG_SYNC = 'RESET'. Also, we
modified these cases according to
http://dev.mysql.com/doc/internals/en/test-synchronization.html
and
https://mediawiki.us.oracle.com/mysql/index.php/How_to_Create_Good_Tests.