syntax_data: {"ast_node_type":"other","tokens":[{"end":18,"kind":"keyword","start":0,"text":"ForDiagnostic,"}]}
source_snippet:     ForDiagnostic,
context_before:     /// Print the RTN type as an impl trait with its path, i.e.e `impl Sized { T::method(..) }`.
context_after:     /// Print the RTN type as an impl trait, i.e. `impl Sized`.