deps: cherry-pick 0483e9a from upstream V8

Original commit message:

    [api] Allow embedder to construct an Array from Local<Value>*

    Currently to obtain a v8::Array out of a C array or a std::vector,
    one needs to loop through the elements and call array->Set() multiple
    times, and these calls go into v8::Object::Set() which can be slow.
    This patch adds a new Array::New overload that converts a
    Local<Value>* with known size into a Local<Array>.

    Change-Id: I0a768f0e18eec51e78d58be455482ec6425ca188
    Reviewed-on: https://chromium-review.googlesource.com/c/1317049
    Reviewed-by: Yang Guo <yangguo@chromium.org>
    Reviewed-by: Adam Klein <adamk@chromium.org>
    Commit-Queue: Joyee Cheung <joyee@igalia.com>
    Cr-Commit-Position: refs/heads/master@{#57261}

Refs: https://github.com/v8/v8/commit/0483e9a9abe77a73632fd85b9c0cd608efa9aa0d

PR-URL: https://github.com/nodejs/node/pull/24125
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Yang Guo <yangguo@chromium.org>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Refael Ackermann <refack@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/deps/v8/include/v8.h b/deps/v8/include/v8.h
index c48025871a..e1951ec270 100644
--- a/deps/v8/include/v8.h
+++ b/deps/v8/include/v8.h
@@ -3779,6 +3779,12 @@ class V8_EXPORT Array : public Object {
    */
   static Local<Array> New(Isolate* isolate, int length = 0);
 
+  /**
+   * Creates a JavaScript array out of a Local<Value> array in C++
+   * with a known length.
+   */
+  static Local<Array> New(Isolate* isolate, Local<Value>* elements,
+                          size_t length);
   V8_INLINE static Array* Cast(Value* obj);
  private:
   Array();