feat: Allow importing .cjs files (#25426)

This commit adds support for executing top-level `.cjs` files, 
as well as import `.cjs` files from within npm packages.

This works only for `.cjs` files, the contents of sibling `package.json`
are not consulted for the `"type"` field.

Closes https://github.com/denoland/deno/issues/25384

---------

Signed-off-by: David Sherret <dsherret@users.noreply.github.com>
Co-authored-by: Luca Casonato <hello@lcas.dev>
Co-authored-by: David Sherret <dsherret@users.noreply.github.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/specs/run/import_common_js/a.js b/tests/specs/run/import_common_js/a.js
new file mode 100644
index 000000000..c465ab588
--- /dev/null
+++ b/tests/specs/run/import_common_js/a.js
@@ -0,0 +1,7 @@
+function foobar() {
+  console.log("foobar");
+}
+
+module.exports = {
+  foobar,
+};