syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"SymbolManglingVersion::V0"}]}
source_snippet:             SymbolManglingVersion::V0 => v0::mangle(tcx, instance, instantiating_crate, false),
context_before:             SymbolManglingVersion::Legacy => legacy::mangle(tcx, instance, instantiating_crate),
context_after:             SymbolManglingVersion::Hashed => {