Turn parent_module_of_macro_def into a query

[cjgillot]

Those two methods contain information that is recorded by the resolver, before the incr. comp. infrastructure is set up.

For now, the maps are accessed as-is. They need to be made queries in order to ensure the correct tracking of their result.

In order to avoid having to compute the forcing query, a pre-requisite is to allow recovering an ExpnId from a Fingerprint.

[inquisitivecrystal]

@rustbot label +A-macros +A-query-system +C-cleanup +T-compiler