I'm trying to essentially store a `Map<IrProper...

# compiler

[rnett]

I'm trying to essentially store a Map<IrProperty, IrField> or similar (the key is a declaration). Is there a proper way to do this that works with incremental compilation and GC (I'd probably use a WeakMap anyways). Compose does something similar using IrAttributeContainer, which doesn't support declarations, is that the best way currently?