syntax_data: {"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // generated. We falsely branch from each candidate to the one below it to make it as if we
context_before:         // Set up false edges so that the borrow-checker cannot make use of the specific CFG we
context_after:         // were testing match branches one by one in order. In the refutable case we also want a