update gitignore

Author: julian-CStack

.gitignore

@@ -114,4 +114,11 @@ crypto_plugins/*.diff
 /devtools_options.yaml
 
 # generated interfaces
-lib/wl_gen/generated/
+lib/wl_gen/generated/
+
+# normally these aren't ignored but WL changes them...
+/linux/flutter/generated_plugin_registrant.cc
+/windows/flutter/generated_plugin_registrant.cc
+/linux/flutter/generated_plugins.cmake
+/windows/flutter/generated_plugins.cmake
+/macos/Flutter/GeneratedPluginRegistrant.swift