syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // temporary and statement in those cases. Note that we can
context_before:                     // directly passed to `PtrMetadata`, so avoid an unnecessary
context_after:                     // only do that for `Copy` types -- not `&mut [_]` -- because