syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"Ok(metadata_ty)"}]}
source_snippet:                         Ok(metadata_ty) => metadata_ty,
context_before:                     match tcx.try_normalize_erasing_regions(cx.typing_env, pointee_metadata) {
context_after:                         Err(mut err) => {