Function clang_sys::clang_codeCompleteAt

pub unsafe extern "C" fn clang_codeCompleteAt(
    tu: CXTranslationUnit, 
    file: *const c_char, 
    line: c_uint, 
    column: c_uint, 
    unsaved: *mut CXUnsavedFile, 
    n_unsaved: c_uint, 
    flags: CXCodeComplete_Flags
) -> *mut CXCodeCompleteResults