syntax_data: {"ast_node_type":"other","tokens":[{"end":17,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:                 }
context_before:                     vptr_offset += TyCtxt::COMMON_VTABLE_ENTRIES.len();
context_after:                 VtblSegment::TraitOwnEntries { trait_ref: vtable_principal, emit_vptr } => {