syntax_data: {"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"//!"}]}
source_snippet: //! whereas a reference to a field is easiest to write in terms of
context_before: //! is typically easiest to write in terms of `as_rvalue` or `into`,
context_after: //! `as_place`. (The exception to this is scope and paren