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, 0 insertions, 22 deletions

diff --git a/ext/fetch/01_fetch_util.js b/ext/fetch/01_fetch_util.js
deleted file mode 100644
index 3ed554ecb..000000000
--- a/ext/fetch/01_fetch_util.js
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-"use strict";
-
-((window) => {
-  const { TypeError } = window.__bootstrap.primordials;
-  function requiredArguments(
-    name,
-    length,
-    required,
-  ) {
-    if (length < required) {
-      const errMsg = `${name} requires at least ${required} argument${
-        required === 1 ? "" : "s"
-      }, but only ${length} present`;
-      throw new TypeError(errMsg);
-    }
-  }
-
-  window.__bootstrap.fetchUtil = {
-    requiredArguments,
-  };
-})(this);