{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"CodegenDiagnosticsStage::Opt"}]}
                    CodegenDiagnosticsStage::Opt => "opt",
                    CodegenDiagnosticsStage::Codegen => "codegen",
                    CodegenDiagnosticsStage::LTO => "lto",