deps: V8: cherry-pick 87ce4f5d98a5

Original commit message:

    [ic] use CSA_DCHECK in CodeStubAssembler::SharedValueBarrier

    Since the code is generated unconditionally, using a DCHECK to check
    that shared RO heap is enabled breaks builds with
    v8_enable_shared_ro_heap set to false, this patch turns that into a
    CSA_DCHECK so it only crashes when V8 actually attempts to store into
    a shared struct while the RO heap isn't shared at run time.

    Refs: #42115
    Bug: v8:12547
    Change-Id: I30d9a02b98a0b647097125c0a9d141e40d6348cc
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3561598
    Reviewed-by: Shu-yu Guo <syg@chromium.org>
    Reviewed-by: Leszek Swirski <leszeks@chromium.org>
    Commit-Queue: Joyee Cheung <joyee@igalia.com>
    Cr-Commit-Position: refs/heads/main@{#79756}

Refs: v8/v8@87ce4f5

PR-URL: #42657
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>

Author: targos

common.gypi

@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.7',
+    'v8_embedder_string': '-node.8',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/codegen/code-stub-assembler.cc

@@ -15953,7 +15953,7 @@ void CodeStubAssembler::SharedValueBarrier(
   GotoIf(TaggedIsSmi(value), &done);
   // Fast path: Shared memory features imply shared RO space, so RO objects are
   // trivially shared.
-  DCHECK(ReadOnlyHeap::IsReadOnlySpaceShared());
+  CSA_DCHECK(this, BoolConstant(ReadOnlyHeap::IsReadOnlySpaceShared()));
   TNode<IntPtrT> page_flags = LoadBasicMemoryChunkFlags(CAST(value));
   GotoIf(WordNotEqual(WordAnd(page_flags,
                               IntPtrConstant(BasicMemoryChunk::READ_ONLY_HEAP)),