syntax_data: {"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // or needs adjusting (ctor). Make sure we don't start adjusting other
context_before:                 // This is either already set up correctly (struct, union, enum, or variant),
context_after:                 // user annotations like consts or fn calls.