Function clang_sys::clang_codeCompleteAt

pub unsafe extern "C" fn clang_codeCompleteAt(
    tu: *mut c_void, 
    file: *const i8, 
    line: u32, 
    column: u32, 
    unsaved: *mut CXUnsavedFile, 
    n_unsaved: u32, 
    flags: i32
) -> *mut CXCodeCompleteResults