This tests mouseenter and mouseleave events across shadow boundaries.


==Entering host parent==
mouseenter on hostParent

==Entering host==
mouseenter on host

==Entering shadow content==
mouseenter on slotParent

==Entering slotted text==
mouseenter on slot

==Entering slotted element==
mouseenter on targetParent
mouseenter on target

==Leaving slotted element==
mouseleave on target
mouseleave on targetParent
mouseleave on slot

==Leaving host==
mouseleave on slotParent
mouseleave on host