/// No declaration kind.
pub const DECL_KIND_NONE: u32 = 0;
/// Function definition declaration kind.
pub const DECL_KIND_FUNCTION: u32 = 1;
/// Function prototype declaration kind.
pub const DECL_KIND_FUNCTION_DECL: u32 = 2;
/// Variable declaration kind.
pub const DECL_KIND_VARIABLE: u32 = 3;
/// Label declaration kind.
pub const DECL_KIND_LABEL: u32 = 4;
/// Typedef declaration kind.
pub const DECL_KIND_TYPEDEF: u32 = 5;
/// Enum constant declaration kind.
pub const DECL_KIND_ENUM_CONSTANT: u32 = 6;