syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"maximal_hir_to_mir_coverage:"}]}
source_snippet:     maximal_hir_to_mir_coverage: bool = (false, parse_bool, [TRACKED],
context_before:         "print some statistics about macro expansions (default: no)"),
context_after:         "save as much information as possible about the correspondence between MIR and HIR \