feat(bundle): add support for --reload flag (#6996)

cli/flags.rs

@@ -394,6 +394,7 @@ fn install_parse(flags: &mut Flags, matches: &clap::ArgMatches) {
 fn bundle_parse(flags: &mut Flags, matches: &clap::ArgMatches) {
   ca_file_arg_parse(flags, matches);
   config_arg_parse(flags, matches);
+  reload_arg_parse(flags, matches);
   importmap_arg_parse(flags, matches);
   unstable_arg_parse(flags, matches);
   lock_args_parse(flags, matches);
@@ -771,6 +772,7 @@ fn bundle_subcommand<'a, 'b>() -> App<'a, 'b> {
     )
     .arg(Arg::with_name("out_file").takes_value(true).required(false))
     .arg(ca_file_arg())
+    .arg(reload_arg())
     .arg(importmap_arg())
     .arg(unstable_arg())
     .arg(config_arg())
@@ -2276,6 +2278,23 @@ mod tests {
     );
   }
 
+  #[test]
+  fn bundle_with_reload() {
+    let r =
+      flags_from_vec_safe(svec!["deno", "bundle", "--reload", "source.ts"]);
+    assert_eq!(
+      r.unwrap(),
+      Flags {
+        reload: true,
+        subcommand: DenoSubcommand::Bundle {
+          source_file: "source.ts".to_string(),
+          out_file: None,
+        },
+        ..Flags::default()
+      }
+    );
+  }
+
   #[test]
   fn run_importmap() {
     let r = flags_from_vec_safe(svec![