There are a few tests (regex5.js, wildcard_index_dedup.js, in8.js, cursor4.js, cursor7.js) that fail when run within the jsCore_slot_based_execution suite (for details on why they fail, see https://jira.mongodb.org/browse/BF-18537). These tests never passed since this suite was created and the fix isn't trivial, so the goal of this task is to disable these tests for now so that the jsCore_slot_based_execution suite is all green until we can fix the underlying issue causing the failures.