syntax_data: {"ast_node_type":"variable","tokens":[{"end":94,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                     let fn_alloc_id = tcx.reserve_and_set_fn_alloc(instance, CTFE_ALLOC_SALT);
context_before:                     let instance = ty::Instance::resolve_drop_in_place(tcx, ty);
context_after:                     let fn_ptr = Pointer::from(fn_alloc_id);