It's shipped since M84.

Bug: v8:8330
Change-Id: Ia643948c0de83fc9a8faf7307b7fd86a1e117dc1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2511034
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71166}

This changes remoteObjectId format from
"{injectedScriptId:123,id:456}" to "<isolateId>.<contextId>.<id>".

Prepending isolateId fixes the problem that
remote object ids clash between processes. This is especially
troubling during cross-process navigation in Chromium, see bug.

We also stop producing and parsing unnecessary json for object ids.

Drive-by: fixed some tests dumping object ids. Most tests avoid
dumping unstable values like ids, but there were few that still did.

BUG=chromium:1137143

Change-Id: Ia019757fb95704ccb718d3ea6cc54bde1a133382
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2461731
Commit-Queue: Dmitry Gozman <dgozman@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70592}

At the moment when the static private method is unused
in source code (either explicitly or through eval) but is accessed
at runtime through the debugger, and there are no other potential
references to the class variable in the source code otherwise,
the reference to the class variable is lost here since the class
variable would not be context-allocated, then we could not rebuild
a proper brand check for it.

For now, a ReferenceError would be thrown and the method is considered
"optimized away", similar to how unused ordinary methods in closures
work. Before this patch it would DCHECK when generating bytecode
for the debugger instead of throwing errors.

Bug: v8:9839, v8:8330
Change-Id: I5d63131a7bdba141d01a3e6459bc27d0f5953c1a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2095637
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66734}