syntax_data: {"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"..tcx.layout_of(ty::TypingEnv::fully_monomorphized().as_query_input(unit_ptr_ty)).unwrap()"}]}
source_snippet:         ..tcx.layout_of(ty::TypingEnv::fully_monomorphized().as_query_input(unit_ptr_ty)).unwrap()
context_before:         // should always work because the type is always `*mut ()`.
context_after:     }