Use stricter paths when referring to items

[tmillr]

blanket/src/types/arc.rs

Lines 11 to 13 in ce0b8ab

	fn wrap(ty: &syn::Ident) -> syn::Type {
	parse_quote!(std::sync::Arc<#ty>)
	}

Just a couple small tips/recommendations:

It'd probably be better to use e.g. ::std::sync::Arc instead of std::sync::Arc here (and likewise for all of the other types), otherwise the path refers to whatever is named std in the local scope (which isn't necessarily the std crate).

https://doc.rust-lang.org/reference/paths.html#path-qualifiers

Further these types should be pulled from ::core else ::alloc (if not found in core) as these crates are simply re-exported by std but have the additional benefit of being supported/accessible in no_std crates.