syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"Operand::Constant(Box::new(ConstOperand"}]}
source_snippet:             Operand::Constant(Box::new(ConstOperand {
context_before:             Operand::Copy(discr_place),
context_after:                 span: source_info.span,