syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // Other projections are only added if there is at least one user type.
context_before:         // The "first" op should always be `PushUserType`.
context_after:         assert_matches!(ops_reversed.last(), Some(ProjectedUserTypesOp::PushUserType { .. }));