Added comment explaining purpose of `search_for_adt_without_structural_match`.
Added comment explaining purpose of `search_for_adt_without_structural_match`.

graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust