refactor: allow to provide polyfills for Node modules from the snapshot (#17706)

This commit does preparatory work to allow snapshotting Node.js
compatibility layer, that currently lives in `std/node`. The logic was 
changed to allow loading some modules from the snapshot and 
some from the remote URL.

Additionally "module_es_shim.js" that provides exports for "node:module"
is now snapshotted.

1 files changed, 5 insertions, 7 deletions

diff --git a/cli/module_loader.rs b/cli/module_loader.rs
index 112f29170..b61b4304e 100644
--- a/cli/module_loader.rs
+++ b/cli/module_loader.rs
@@ -77,13 +77,11 @@ impl CliModuleLoader {
     specifier: &ModuleSpecifier,
     maybe_referrer: Option<ModuleSpecifier>,
   ) -> Result<ModuleCodeSource, AnyError> {
-    if specifier.as_str() == "node:module" {
-      return Ok(ModuleCodeSource {
-        code: deno_runtime::deno_node::MODULE_ES_SHIM.to_string(),
-        found_url: specifier.to_owned(),
-        media_type: MediaType::JavaScript,
-      });
-    }
+    // TODO(bartlomieju): uncomment, when all `node:` module have been
+    // snapshotted
+    // if specifier.scheme() == "node" {
+    //   unreachable!("Node built-in modules should be handled internally.");
+    // }
     let graph = self.ps.graph();
     match graph.get(specifier) {
       Some(deno_graph::Module {