Reapply "[VM/dartdev] Switch dartdev to use an AOT runtime." and

Add the fixes that were done after original CL landed.

This reverts commit 97bc401163.

TEST=ci

Change-Id: I26373aecc325e4c0c379c92e779aa301e3a58c5a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/441700
Reviewed-by: Brian Quinlan <bquinlan@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>

utils/dartdev/BUILD.gn

@@ -3,8 +3,34 @@
 # BSD-style license that can be found in the LICENSE file.
 
 import("../../build/dart/copy_tree.gni")
+import("../aot_snapshot.gni")
 import("../application_snapshot.gni")
 
+group("dartdev_aot") {
+  public_deps = [
+    ":copy_prebuilt_devtools",
+    ":dartdev_aot_snapshot",
+  ]
+}
+
+aot_snapshot("dartdev_aot_profile_snapshot") {
+  main_dart = "../../pkg/dartdev/bin/dartdev.dart"
+  output = "$root_out_dir/dartdev_aot_profile.dart.snapshot"
+}
+
+aot_snapshot("dartdev_aot_snapshot") {
+  main_dart = "../../pkg/dartdev/bin/dartdev.dart"
+  output = "$root_out_dir/dartdev_aot.dart.snapshot"
+
+  # dart has dart_product_config applied to it,
+  # so it is built in product mode in both release and
+  # product builds, and is only built in debug mode in debug
+  # builds. The following line ensures that the dart
+  # and dartdev_aot snapshot in an SDK build are
+  # always compatible with each other.
+  force_product_mode = !dart_debug
+}
+
 group("dartdev") {
   public_deps = [
     ":copy_dartdev_snapshot",
@@ -12,6 +38,12 @@ group("dartdev") {
   ]
 }
 
+application_snapshot("generate_dartdev_snapshot") {
+  main_dart = "../../pkg/dartdev/bin/dartdev.dart"
+  training_args = [ "--help" ]
+  output = "$root_gen_dir/dartdev.dart.snapshot"
+}
+
 copy("copy_dartdev_snapshot") {
   visibility = [ ":dartdev" ]
   public_deps = [ ":generate_dartdev_snapshot" ]
@@ -19,14 +51,11 @@ copy("copy_dartdev_snapshot") {
   outputs = [ "$root_out_dir/dartdev.dart.snapshot" ]
 }
 
-application_snapshot("generate_dartdev_snapshot") {
-  main_dart = "../../pkg/dartdev/bin/dartdev.dart"
-  training_args = [ "--help" ]
-  output = "$root_gen_dir/dartdev.dart.snapshot"
-}
-
 copy_tree("copy_prebuilt_devtools") {
-  visibility = [ ":dartdev" ]
+  visibility = [
+    ":dartdev",
+    ":dartdev_aot",
+  ]
   source = "../../third_party/devtools/web"
   dest = "$root_out_dir/devtools"
   exclude = "{}"