* Fixed Roost clearing type3 when used by a pure Flying-type. (Gen 5+)
* Created a test file for Roost.
* Marked tests as TODO for now.
* Added more tests for HP healed and type changing.
* Created a function to handle Roost's Flying suppression when getting a battler's type. Added more tests.
* Added test for not-yet-aquired Flying-type. Fixed/rewrote some other tests.
* Now using GetBattlerType() in most relevant places. Fixed some tests.
* Added tests for interactions between Roost and Delta Stream, type-changing effects, Grassy Terrain healing, Levitate, Air Balloon, Magnet Rise, and Telekinesis.
* Added test for interaction between Roost and Reflect Type.
* Gen 4 tests merged with Gen 5+ tests.
* Removed errant space.
Co-authored-by: LOuroboros <lunosouroboros@gmail.com>
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Co-authored-by: LOuroboros <lunosouroboros@gmail.com>
