{"ast_node_type":"other","tokens":[{"end":123,"kind":"keyword","start":0,"text":"PanicAddOverflow,"}]}
    PanicAddOverflow,        sym::panic_const_add_overflow, panic_const_add_overflow, Target::Fn, GenericRequirement::None;
    /// Constant panic messages, used for codegen of MIR asserts.
    PanicSubOverflow,        sym::panic_const_sub_overflow, panic_const_sub_overflow, Target::Fn, GenericRequirement::None;