[PATCH] [WebAssembly] Disassembler support

[Pip Cet]

Hi Nick,
Thank you, and thanks for fixing the problem! I'd indeed neglected to
provide an updated patch after Pedro's change to the disassembler API
yesterday.

Do you have any preferences as to whether it is okay to send the
linker changes as one large patch rather than several shorter ones?
The latter would be a little effort for me, but would obviously be
worth it if you think it's likely this code will go through multiple
review cycles.

Thanks again,
Pip