Some entities on team harm teammates that walk into them when friendly fire is false

Per @unknown's comment on MC-46956, I'm making a new report for this.

Some entities harm teammates that walk into them, when friendly fire is false

Steps to reproduce:

1. /team add TestTeam

2. /team modify TestTeam friendlyFire false

3. /team join TestTeam

4. /summon slime ~ ~ ~ {Team:TestTeam,Size:3}

5. walk into the slime

6. notice how you take damage

Affected entities:

• Slime

• Magma Cube

• Ender Dragon

• Pufferfish

• Area Effect Cloud (added for inclusion purposes; it's understandable if this one is WAI)

Expected result:

Friendly fire is respected and they cannot hurt teammates.