用于进行gcc测试

				// { dg-do compile }								// Copyright (C) 2003 Free Software Foundation, Inc.				// Contributed by Nathan Sidwell 4 Jan 2003 								// PR 9109. Ambiguity. [dcl.ambig.res]/7								template  void Foo (int (T))				{				  try {}				  catch (int (T)) {}				}