syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"v0::mangle(tcx,"}]}
source_snippet:             v0::mangle(tcx, instance, instantiating_crate, true),
context_before:             "{}.{}",
context_after:             export::compute_hash_of_export_fn(tcx, instance)