After https://crrev.com/c/1800575 and https://crrev.com/c/1803343,
which tried to fix this on occuring compile errors, this CL
systematically adds the <memory> include to each header that uses
{std::unique_ptr}.

R=sigurds@chromium.org
TBR=mlippautz@chromium.org,alph@chromium.org,rmcilroy@chromium.org,verwaest@chromium.org

Bug: v8:9396
Change-Id: If7f9c3140842f9543135dddd7344c0f357999da0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1803349Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63767}

We also introduce a subclass of AbstractBytecodeArray to allow access
to the off-heap copy of bytecode array from the bytecode iterator.

Note that not all bytecode iterators have been converted to iterate
the off-heap copy; in particular, bytecode analysis still iterates
the on-heap bytecode array.

Bug: v8:7790
Change-Id: Icc1b0adb5f63d7cfe94286311f64f209067bbfd5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1672931
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62403}

This is to allow instantiating things like bytecode array iterator for
accessing both on-heap and off-heap bytecode arrays.

Bug: v8:7790
Change-Id: I8dbd0884f79923d69dbc8b168d3a4a200eab14b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1640199
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62266}

This allows us to optimise the bytecode liveness analysis to jump
directly to previously seen indices. The analysis is optimised to store
a stack of loop ends (JumpLoop bytecode indices), and iterate through
these indices directly rather than looping through the bytecode array to
find them.

Review-Url: https://codereview.chromium.org/2536653003
Cr-Commit-Position: refs/heads/master@{#41485}