[fuchsia] Reland: Migrate d8 to a component framework v2 Fuchsia component

In the process, switch to using the Fuchsia GN SDK templates for
building the component and package.

gni/v8.cmx is retained temporarily until out-of-tree consumers have been
updated.

Bug: v8:12589
Change-Id: If08cfcbf579696482e7cd60a8b8b80bcc4c7dab2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3885881
Auto-Submit: Greg Thompson <grt@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Greg Thompson <grt@chromium.org>
Reviewed-by: Alexander Schulze <alexschulze@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83106}

BUILD.gn

@@ -6385,18 +6385,25 @@ group("v8_archive") {
 # TODO(dglazkov): Remove the "!build_with_chromium" condition once this clause
 # is removed from Chromium.
 if (is_fuchsia && !build_with_chromium) {
-  import("//build/config/fuchsia/rules.gni")
+  import("//build/config/fuchsia/generate_runner_scripts.gni")
+  import("//third_party/fuchsia-sdk/sdk/build/component.gni")
+  import("//third_party/fuchsia-sdk/sdk/build/package.gni")
 
-  cr_fuchsia_package("d8_fuchsia_pkg") {
+  fuchsia_component("d8_component") {
     testonly = true
-    binary = ":d8"
-    manifest = "gni/v8.cmx"
-    package_name_override = "d8"
+    manifest = "gni/v8.cml"
+    data_deps = [ ":d8" ]
+  }
+
+  fuchsia_package("d8_pkg") {
+    testonly = true
+    package_name = "d8"
+    deps = [ ":d8_component" ]
   }
 
   fuchsia_package_installer("d8_fuchsia") {
     testonly = true
-    package = ":d8_fuchsia_pkg"
+    package = ":d8_pkg"
     package_name = "d8"
   }
 }

gni/OWNERS

@@ -1,5 +1,6 @@
 file:../INFRA_OWNERS
 
+per-file v8.cml=victorgomes@chromium.org
 per-file v8.cmx=victorgomes@chromium.org
 per-file release_branch_toggle.gni=v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com
 per-file release_branch_toggle.gni=vahl@chromium.org

gni/v8.cml

@@ -0,0 +1,21 @@
+// Copyright 2022 The V8 project authors
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+{
+  include: [ "syslog/client.shard.cml" ],
+  program: {
+    runner: "elf",
+    binary: "d8",
+  },
+  use: [
+    {
+      protocol: [
+        "fuchsia.kernel.VmexResource",
+      ],
+    },
+    {
+      storage: "tmp",
+      path: "/tmp",
+    },
+  ],
+}