add copyright header

Author: a-tarasyuk

clang/include/clang/Basic/AttributeScopeInfo.h

@@ -1,3 +1,16 @@
+//===- AttributeScopeInfo.h - Base info about an Attribute Scope -*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the AttributeScopeInfo type, which represents information
+// about the scope of an attribute.
+//
+//===----------------------------------------------------------------------===//
+
 #ifndef LLVM_CLANG_BASIC_ATTRIBUTESCOPEINFO_H
 #define LLVM_CLANG_BASIC_ATTRIBUTESCOPEINFO_H