syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"&&"}]}
source_snippet:                         && self.consts_may_unify_inner(lhs_len, rhs_len)
context_before:                     self.types_may_unify_inner(lhs_ty, rhs_ty, depth)
context_after:                 }