refactor: Use ES modules for internal runtime code (#17648)

This PR refactors all internal js files (except core) to be written as
ES modules.
`__bootstrap`has been mostly replaced with static imports in form in
`internal:[path to file from repo root]`.
To specify if files are ESM, an `esm` method has been added to
`Extension`, similar to the `js` method.
A new ModuleLoader called `InternalModuleLoader` has been added to
enable the loading of internal specifiers, which is used in all
situations except when a snapshot is only loaded, and not a new one is
created from it.

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/ext/url/benches/url_ops.rs b/ext/url/benches/url_ops.rs
index 5a5997fc8..4b41eb3a0 100644
--- a/ext/url/benches/url_ops.rs
+++ b/ext/url/benches/url_ops.rs
@@ -12,9 +12,11 @@ fn setup() -> Vec<Extension> {
     deno_webidl::init(),
     deno_url::init(),
     Extension::builder("bench_setup")
-      .js(vec![(
-        "setup",
-        "const { URL } = globalThis.__bootstrap.url;",
+      .esm(vec![(
+        "internal:setup",
+        r#"import { URL } from "internal:ext/url/00_url.js";
+        globalThis.URL = URL;
+        "#,
       )])
       .build(),
   ]