Error span for reinterpret_cast error is very incorrect

[jdm]

socket.rc:1:0: 1:0 error: reinterpret_cast called on types with different size: socket::sockaddr4_in to socket::sockaddr_storage

This is coming from the rust-socket library currently. The actual problem line is in socket.rs.

[catamorphism]

reinterpret_cast always gets inlined, and spans for the bodies of inlined things are wrong. There's already a bug on this: #1972.