syntax_data: {"ast_node_type":"impl","tokens":[{"end":92,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // self` as a parameter. In the general case, a drop impl could launder that
context_before:                 // Drop terminators may call custom drop glue (`Drop::drop`), which takes `&mut
context_after:                 // reference into the surrounding environment through a raw pointer, thus creating