syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"(PassMode::Pair(a1,"}]}
source_snippet:             (PassMode::Pair(a1, b1), PassMode::Pair(a2, b2)) => a1.eq_abi(a2) && b1.eq_abi(b2),
context_before:             (PassMode::Direct(a1), PassMode::Direct(a2)) => a1.eq_abi(a2),
context_after:             (