syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                 if metadata_layout.is_1zst() {
context_before:                 // If the metadata is a 1-zst, then the pointer is thin.
context_after:                     return Ok(tcx.mk_layout(LayoutData::scalar(cx, data_ptr)));