fix(node): add missing process.reallyExit method (#19326)

This PR adds the missing `process.reallyExit()` method to node's
`process` object.

Was [pinged on
twitter](https://twitter.com/biwanczuk/status/1663326659787862017)
regarding running the `fastify` test suite in node. They use `node-tap`
which has been around arguably the longest of the test frameworks and
relies on a couple of old APIs. They have `signal-exit` as a dependency
which in turn [makes use of
`process.reallyExit()`](https://github.com/tapjs/signal-exit/blob/8fa7fc9a9c63f559af43d292b7eb727901775507/src/index.ts#L19).
That function cannot be found anywhere in their documentation, but
exists at runtime. See
https://github.com/nodejs/node/blob/6a6b3c54022104cc110ab09044a2a0cecb8988e7/lib/internal/bootstrap/node.js#L172

This doesn't yet make `node-tap` work, but gets us one step closer.

1 files changed, 19 insertions, 0 deletions

diff --git a/cli/tests/unit_node/process_test.ts b/cli/tests/unit_node/process_test.ts
index 686a3dbbc..49b753db3 100644
--- a/cli/tests/unit_node/process_test.ts
+++ b/cli/tests/unit_node/process_test.ts
@@ -727,3 +727,22 @@ Deno.test({
     assertEquals(stripColor(decoder.decode(stdout).trim()), "exit");
   },
 });
+
+Deno.test({
+  name: "process.reallyExit",
+  async fn() {
+    const command = new Deno.Command(Deno.execPath(), {
+      args: [
+        "run",
+        "--quiet",
+        "--unstable",
+        "./testdata/process_really_exit.ts",
+      ],
+      cwd: testDir,
+    });
+    const { stdout } = await command.output();
+
+    const decoder = new TextDecoder();
+    assertEquals(stripColor(decoder.decode(stdout).trim()), "really exited");
+  },
+});