feat: granular --unstable-* flags (#20968)

This commit adds granular `--unstable-*` flags:
- "--unstable-broadcast-channel"
- "--unstable-ffi"
- "--unstable-fs"
- "--unstable-http"
- "--unstable-kv"
- "--unstable-net"
- "--unstable-worker-options"
- "--unstable-cron"

These flags are meant to replace a "catch-all" flag - "--unstable", that
gives a binary control whether unstable features are enabled or not. The
downside of this flag that allowing eg. Deno KV API also enables the FFI
API (though the latter is still gated with a permission).

These flags can also be specified in `deno.json` file under `unstable`
key.

Currently, "--unstable" flag works the same way - I will open a follow
up PR that will print a warning when using "--unstable" and suggest to use
concrete "--unstable-*" flag instead. We plan to phase out "--unstable"
completely in Deno 2.

1 files changed, 1 insertions, 1 deletions

diff --git a/runtime/ops/worker_host.rs b/runtime/ops/worker_host.rs
index 960e35b3d..b2ea1affe 100644
--- a/runtime/ops/worker_host.rs
+++ b/runtime/ops/worker_host.rs
@@ -26,7 +26,7 @@ use std::collections::HashMap;
 use std::rc::Rc;
 use std::sync::Arc;
 
-pub const UNSTABLE_FEATURE_NAME: &str = "worker";
+pub const UNSTABLE_FEATURE_NAME: &str = "worker-options";
 
 pub struct CreateWebWorkerArgs {
   pub name: String,