syntax_data: {"ast_node_type":"other","tokens":[{"end":28,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if arg.is_ignore() {
context_before:     for arg in fn_abi.args.iter_mut() {
context_after:             // sparc64-unknown-linux-{gnu,musl,uclibc} doesn't ignore ZSTs.