syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"ty::ConstKind::Value(cv)"}]}
source_snippet:                         ty::ConstKind::Value(cv) => cv.ty,
context_before:                         ty::ConstKind::Error(_) => return Ok(EvaluatedToOk),
context_after:                         ty::ConstKind::Unevaluated(uv) => {