syntax_data: {"ast_node_type":"import","tokens":[{"end":91,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                             // Trait>::{constant#0}`. This would cause printing to enter an
context_before:                             // an impl it will attempt to print out the impl trait ref i.e. `<T as
context_after:                             // infinite recursion if the anon const is in the self type i.e.