syntax_data: {"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:             if !tcx.check_args_compatible(leaf_def.item.def_id, args) {
context_before:             // as during inlining. This check is also done in projection.
context_after:                 let guar = tcx.dcx().span_delayed_bug(