It introduces GetSecondReturnedValue node, which must be added
immediately after a node that calls a builtin that expects 2
returned values.

It simply binds kReturnRegister1 to a value node. Since the previous
node must have been a builtin call, kReturnRegister1 is free in
the register allocator. No gap moves will be emitted between these
two nodes.

Bug: v8:7700
Change-Id: Iddd81ef534a6397bad5682fa1430a94d2075b746
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3810183
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82204}