Analogous to 44c9ea50.

In the previous test the same address was always returned for data,
hinting that the tests might have been succeding just because of some
aliasing reason. The new tests show that this is not the case:
even when transferring data through another throw-away surface,
changes are seen and recorded independently of the locking flags.

Called by IE11.
Signed-off-by: Mohamad Al-Jaf <mohamadaljaf@gmail.com>

Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

Avoids having to look it up again later during collection.
Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

This is traversed from the Gecko document, and should be part of the graph
(it refers to gecko objects that participate in it, and which are part of
a cycle).
Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

Since such event types don't exist as separate event types in older modes,
this prevents confusing leaks without bloating the constructors with more
boilerplate.
Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>

Needed for Minecraft Legends.

Needed for Minecraft Legends.