[serializer/debugger] hide scripts in the snapshot from the debugger.

src/debug/debug.cc

Index: src/debug/debug.cc
diff --git a/src/debug/debug.cc b/src/debug/debug.cc
index f0e93841fd1260ef52b99adb864b0fddb1448165..909c5d0ca51224bf4a06e7a76d53725016702d0b 100644
--- a/src/debug/debug.cc
+++ b/src/debug/debug.cc
@@ -2059,13 +2059,13 @@ void Debug::OnAsyncTaskEvent(debug::PromiseDebugActionType type, int id,
 }
 
 void Debug::ProcessCompileEvent(v8::DebugEvent event, Handle<Script> script) {
+  if (!script->IsUserJavaScript() && script->type() != i::Script::TYPE_WASM) {
+    return;
+  }
   // Attach the correct debug id to the script. The debug id is used by the
   // inspector to filter scripts by native context.
   script->set_context_data(isolate_->native_context()->debug_context_id());
   if (ignore_events()) return;
-  if (!script->IsUserJavaScript() && script->type() != i::Script::TYPE_WASM) {
-    return;
-  }
   if (!debug_delegate_) return;
   SuppressDebug while_processing(this);
   DebugScope debug_scope(this);