Add span to E0391

[estebank]

Current output:

error[E0391]: cycle detected when computing layout of `std::option::Option<S>`
   |
note: ...which requires computing layout of `S`...
   = note: ...which again requires computing layout of `std::option::Option<S>`, completing the cycle
note: cycle used when compile_codegen_unit

[euclio]

I took a look at this, and it looks like calls to the layout_of query need to be associated with a span. However, I'm not familiar enough with the query system to figure out how to do that. Looks like the normalization query needs a span as well.

[estebank]

This has since been fixed.