syntax_data: {"ast_node_type":"function","tokens":[{"end":63,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // Prepare the fn ptr we write into the vtable.
context_before:             VtblEntry::Method(instance) => {
context_after:                 let fn_alloc_id = tcx.reserve_and_set_fn_alloc(instance, CTFE_ALLOC_SALT);