syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"assert!(last_offset.is_aligned(dl.f64_align.abi));"}]}
source_snippet:                             assert!(last_offset.is_aligned(dl.f64_align.abi));
context_before:                             // Insert enough integers to cover [last_offset, offset)
context_after:                             for _ in 0..((offset - last_offset).bits() / 64)