syntax_data: {"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // the pattern matching passes, in the MIR building the storages for them
context_before:                     // In addition, even though bindings in `<pat>` only come into scope if
context_after:                     // are declared as live any way.