syntax_data: {"ast_node_type":"other","tokens":[{"end":36,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                 if !for_crate_hash {
context_before:                 DepTrackingHash::hash(key, hasher, error_format, for_crate_hash);
context_after:                     DepTrackingHash::hash(val, hasher, error_format, for_crate_hash);