pub unsafe extern "C" fn LLVMRustDIBuilderCreateFunction<'a>(
    Builder: &DIBuilder<'a>,
    Scope: &'a DIDescriptor,
    Name: *const c_char,
    NameLen: size_t,
    LinkageName: *const c_char,
    LinkageNameLen: size_t,
    File: &'a DIFile,
    LineNo: c_uint,
    Ty: &'a DIType,
    ScopeLine: c_uint,
    Flags: DIFlags,
    SPFlags: DISPFlags,
    MaybeFn: Option<&'a Value>,
    TParam: &'a DIArray,
    Decl: Option<&'a DIDescriptor>
) -> &'a DISubprogram