WASM_OBJECT_FILES=1 deprecated?

I am doing whole program analysis in a LLVM pass, which needs the whole program to run through a pass on a single final .bc file. I was using `-s WASM_OBJECT_FILES=0` for that feature, but now it looks like #10643 has deprecated that mode.

My understanding is that the wasm object files do not allow a LLVM analysis tool pass to be run on the high level bitcode format anymore, before it's been lowered to wasm? I am not sure how to proceed without WASM_OBJECT_FILES=1 support anymore. Is there a specific reason that the .bc flow needs to go away?