I would like to request for --keep-names to only be applied when the name is changed (e.g. via minification).

Currently, it applies even if the name is unchanged: https://hyrious.me/esbuild-repl/?version=0.15.10&mode=transform&input=function+name%28%29+%7B%7D&options=--keep-names

This improvement should have the benefit of reducing transformation size and also preserve as much of the original code when possible (which can help with #1438).