[NFC] servoshell: fix rust-analyzer and rustfmt breakage (#30340)

ports/servoshell/main.rs

@@ -20,13 +20,52 @@
 // mode is turned on.
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
 
-#[cfg(not(target_os = "android"))]
-include!("main2.rs");
+cfg_if::cfg_if! {
+    if #[cfg(not(target_os = "android"))] {
+        #[cfg(any(target_os = "macos", target_os = "linux"))]
+        #[macro_use]
+        extern crate sig;
 
-#[cfg(target_os = "android")]
-pub fn main() {
-    println!(
-        "Cannot start /ports/servo/ on Android. \
-         Use /support/android/apk/ + /ports/libsimpleservo/ instead"
-    );
+        #[cfg(test)]
+        mod test;
+
+        mod app;
+        mod backtrace;
+        mod browser;
+        mod crash_handler;
+        mod egui_glue;
+        mod embedder;
+        mod events_loop;
+        mod headed_window;
+        mod headless_window;
+        mod keyutils;
+        mod main2;
+        mod minibrowser;
+        mod parser;
+        mod prefs;
+        mod resources;
+        mod window_trait;
+
+        pub mod platform {
+            #[cfg(target_os = "macos")]
+            pub use crate::platform::macos::deinit;
+
+            #[cfg(target_os = "macos")]
+            pub mod macos;
+
+            #[cfg(not(target_os = "macos"))]
+            pub fn deinit(_clean_shutdown: bool) {}
+        }
+
+        pub fn main() {
+            main2::main()
+        }
+    } else {
+        pub fn main() {
+            println!(
+                "Cannot start /ports/servo/ on Android. \
+                 Use /support/android/apk/ + /ports/libsimpleservo/ instead"
+            );
+        }
+    }
 }