syntax_data: {"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                 if def.repr().pack.is_some() && def.repr().align.is_some() {
context_before:             if def.is_union() {
context_after:                     let guar = tcx.dcx().span_delayed_bug(