Auto Heal Loop Support

[anshum4n-git]

Currently, you build and run the tests and if they fail, manually delete the generated sql, add additional instructions in function spec and then run it again. A self heal loop can support two types of auto-fixes

1. If the SQL generated has syntax errors - it can be fixed within the loop itself
2. If the SQL has functional error and generated incorrect data causing the test to fail, the newly generated sql shouldn't be cached - so a rerun of the test regens the SQL.