Revert "Reland "refactor(core): cleanup feature flags for js source i… (#19611)

…nclusion" (#19519)"

This reverts commit 28a4f3d0f5383695b1d49ccdc8b0f799a715b2c2.

This change causes failures when used outside Deno repo:
```
============================================================
Deno has panicked. This is a bug in Deno. Please report this
at https://github.com/denoland/deno/issues/new.
If you can reliably reproduce this panic, include the
reproduction steps and re-run with the RUST_BACKTRACE=1 env
var set and include the backtrace in your report.

Platform: linux x86_64
Version: 1.34.3+b37b286
Args: ["/opt/hostedtoolcache/deno/0.0.0-b37b286f7fa68d5656f7c180f6127bdc38cf2cf5/x64/deno", "test", "--doc", "--unstable", "--allow-all", "--coverage=./cov"]

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Failed to read "/home/runner/work/deno/deno/core/00_primordials.js"

Caused by:
    No such file or directory (os error 2)', core/runtime/jsruntime.rs:699:8
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```

7 files changed, 36 insertions, 32 deletions

diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index f259c702d..bbb7b0236 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -27,8 +27,8 @@ harness = false
 path = "./bench/lsp_bench_standalone.rs"
 
 [build-dependencies]
-deno_runtime = { workspace = true, features = ["exclude_js_main_from_snapshot"] }
-deno_core = { workspace = true, features = ["runtime_js_sources"] }
+deno_runtime = { workspace = true, features = ["snapshot_from_snapshot", "include_js_files_for_snapshotting"] }
+deno_core = { workspace = true, features = ["include_js_files_for_snapshotting"] }
 lazy-regex.workspace = true
 serde.workspace = true
 serde_json.workspace = true
@@ -41,14 +41,14 @@ winres.workspace = true
 
 [dependencies]
 deno_ast = { workspace = true, features = ["bundler", "cjs", "codegen", "dep_graph", "module_specifier", "proposal", "react", "sourcemap", "transforms", "typescript", "view", "visit"] }
-deno_core = { workspace = true, features = ["exclude_js_sources"] }
+deno_core = { workspace = true, features = ["include_js_files_for_snapshotting"] }
 deno_doc = "=0.63.1"
 deno_emit = "=0.24.0"
 deno_graph = "=0.49.0"
 deno_lint = { version = "=0.47.0", features = ["docs"] }
 deno_lockfile.workspace = true
 deno_npm.workspace = true
-deno_runtime = { workspace = true, features = ["dont_create_runtime_snapshot"] }
+deno_runtime = { workspace = true, features = ["dont_create_runtime_snapshot", "include_js_files_for_snapshotting"] }
 deno_semver.workspace = true
 deno_task_shell = "=0.12.0"
 eszip = "=0.44.0"
diff --git a/cli/build.rs b/cli/build.rs
index a4893741b..5ff86fa20 100644
--- a/cli/build.rs
+++ b/cli/build.rs
@@ -266,7 +266,11 @@ mod ts {
       cargo_manifest_dir: env!("CARGO_MANIFEST_DIR"),
       snapshot_path,
       startup_snapshot: None,
-      extensions: vec![deno_tsc::init_ext(op_crate_libs, build_libs, path_dts)],
+      extensions: vec![deno_tsc::init_ops_and_esm(
+        op_crate_libs,
+        build_libs,
+        path_dts,
+      )],
 
       // NOTE(bartlomieju): Compressing the TSC snapshot in debug build took
       // ~45s on M1 MacBook Pro; without compression it took ~1s.
@@ -318,7 +322,7 @@ deno_core::extension!(
   customizer = |ext: &mut deno_core::ExtensionBuilder| {
     ext.esm(vec![ExtensionFileSource {
       specifier: "ext:cli/runtime/js/99_main.js",
-      code: ExtensionFileSourceCode::LoadAtRuntime(
+      code: ExtensionFileSourceCode::LoadedFromFsDuringSnapshot(
         std::path::PathBuf::from(deno_runtime::js::PATH_FOR_99_MAIN_JS),
       ),
     }]);
@@ -331,42 +335,42 @@ fn create_cli_snapshot(snapshot_path: PathBuf) -> CreateSnapshotOutput {
   // `runtime/worker.rs`, `runtime/web_worker.rs` and `runtime/build.rs`!
   let fs = Arc::new(deno_fs::RealFs);
   let extensions: Vec<Extension> = vec![
-    deno_webidl::deno_webidl::init_ext(),
-    deno_console::deno_console::init_ext(),
-    deno_url::deno_url::init_ext(),
-    deno_web::deno_web::init_ext::<PermissionsContainer>(
+    deno_webidl::deno_webidl::init_ops(),
+    deno_console::deno_console::init_ops(),
+    deno_url::deno_url::init_ops(),
+    deno_web::deno_web::init_ops::<PermissionsContainer>(
       deno_web::BlobStore::default(),
       Default::default(),
     ),
-    deno_fetch::deno_fetch::init_ext::<PermissionsContainer>(Default::default()),
-    deno_cache::deno_cache::init_ext::<SqliteBackedCache>(None),
-    deno_websocket::deno_websocket::init_ext::<PermissionsContainer>(
+    deno_fetch::deno_fetch::init_ops::<PermissionsContainer>(Default::default()),
+    deno_cache::deno_cache::init_ops::<SqliteBackedCache>(None),
+    deno_websocket::deno_websocket::init_ops::<PermissionsContainer>(
       "".to_owned(),
       None,
       None,
     ),
-    deno_webstorage::deno_webstorage::init_ext(None),
-    deno_crypto::deno_crypto::init_ext(None),
-    deno_broadcast_channel::deno_broadcast_channel::init_ext(
+    deno_webstorage::deno_webstorage::init_ops(None),
+    deno_crypto::deno_crypto::init_ops(None),
+    deno_broadcast_channel::deno_broadcast_channel::init_ops(
       deno_broadcast_channel::InMemoryBroadcastChannel::default(),
       false, // No --unstable.
     ),
-    deno_ffi::deno_ffi::init_ext::<PermissionsContainer>(false),
-    deno_net::deno_net::init_ext::<PermissionsContainer>(
+    deno_ffi::deno_ffi::init_ops::<PermissionsContainer>(false),
+    deno_net::deno_net::init_ops::<PermissionsContainer>(
       None, false, // No --unstable.
       None,
     ),
-    deno_tls::deno_tls::init_ext(),
-    deno_kv::deno_kv::init_ext(
+    deno_tls::deno_tls::init_ops(),
+    deno_kv::deno_kv::init_ops(
       SqliteDbHandler::<PermissionsContainer>::new(None),
       false, // No --unstable.
     ),
-    deno_napi::deno_napi::init_ext::<PermissionsContainer>(),
-    deno_http::deno_http::init_ext::<DefaultHttpPropertyExtractor>(),
-    deno_io::deno_io::init_ext(Default::default()),
-    deno_fs::deno_fs::init_ext::<PermissionsContainer>(false, fs.clone()),
-    deno_node::deno_node::init_ext::<PermissionsContainer>(None, fs),
-    cli::init_ext(),
+    deno_napi::deno_napi::init_ops::<PermissionsContainer>(),
+    deno_http::deno_http::init_ops::<DefaultHttpPropertyExtractor>(),
+    deno_io::deno_io::init_ops(Default::default()),
+    deno_fs::deno_fs::init_ops::<PermissionsContainer>(false, fs.clone()),
+    deno_node::deno_node::init_ops::<PermissionsContainer>(None, fs),
+    cli::init_ops_and_esm(), // NOTE: This needs to be init_ops_and_esm!
   ];
 
   create_snapshot(CreateSnapshotOptions {
diff --git a/cli/lsp/tsc.rs b/cli/lsp/tsc.rs
index 386126942..66687789b 100644
--- a/cli/lsp/tsc.rs
+++ b/cli/lsp/tsc.rs
@@ -3236,7 +3236,7 @@ fn op_script_version(
 /// server.
 fn js_runtime(performance: Arc<Performance>) -> JsRuntime {
   JsRuntime::new(RuntimeOptions {
-    extensions: vec![deno_tsc::init_ext(performance)],
+    extensions: vec![deno_tsc::init_ops(performance)],
     startup_snapshot: Some(tsc::compiler_snapshot()),
     ..Default::default()
   })
diff --git a/cli/ops/mod.rs b/cli/ops/mod.rs
index 3b2cf6346..5066c44b9 100644
--- a/cli/ops/mod.rs
+++ b/cli/ops/mod.rs
@@ -12,7 +12,7 @@ pub mod bench;
 pub mod testing;
 
 pub fn cli_exts(npm_resolver: Arc<CliNpmResolver>) -> Vec<Extension> {
-  vec![deno_cli::init_ext(npm_resolver)]
+  vec![deno_cli::init_ops(npm_resolver)]
 }
 
 deno_core::extension!(deno_cli,
diff --git a/cli/tools/bench.rs b/cli/tools/bench.rs
index be7bc78ea..f926cec5a 100644
--- a/cli/tools/bench.rs
+++ b/cli/tools/bench.rs
@@ -447,7 +447,7 @@ async fn bench_specifier(
     .create_custom_worker(
       specifier.clone(),
       PermissionsContainer::new(permissions),
-      vec![ops::bench::deno_bench::init_ext(sender.clone())],
+      vec![ops::bench::deno_bench::init_ops(sender.clone())],
       Default::default(),
     )
     .await?;
diff --git a/cli/tools/test.rs b/cli/tools/test.rs
index 2daea8aec..dc48ab9e5 100644
--- a/cli/tools/test.rs
+++ b/cli/tools/test.rs
@@ -936,7 +936,7 @@ pub async fn test_specifier(
     .create_custom_worker(
       specifier.clone(),
       PermissionsContainer::new(permissions),
-      vec![ops::testing::deno_test::init_ext(sender.clone())],
+      vec![ops::testing::deno_test::init_ops(sender.clone())],
       Stdio {
         stdin: StdioPipe::Inherit,
         stdout,
diff --git a/cli/tsc/mod.rs b/cli/tsc/mod.rs
index d6df0ef7e..a4d6640f7 100644
--- a/cli/tsc/mod.rs
+++ b/cli/tsc/mod.rs
@@ -122,7 +122,7 @@ fn get_asset_texts_from_new_runtime() -> Result<Vec<AssetText>, AnyError> {
   // the assets are stored within the typescript isolate, so take them out of there
   let mut runtime = JsRuntime::new(RuntimeOptions {
     startup_snapshot: Some(compiler_snapshot()),
-    extensions: vec![deno_cli_tsc::init_ext()],
+    extensions: vec![deno_cli_tsc::init_ops()],
     ..Default::default()
   });
   let global = runtime
@@ -787,7 +787,7 @@ pub fn exec(request: Request) -> Result<Response, AnyError> {
 
   let mut runtime = JsRuntime::new(RuntimeOptions {
     startup_snapshot: Some(compiler_snapshot()),
-    extensions: vec![deno_cli_tsc::init_ext(
+    extensions: vec![deno_cli_tsc::init_ops(
       request,
       root_map,
       remapped_specifiers,