PR c++/6196
	* pt.c (tsubst_copy_and_build): Correct handling of
	address-of-label extension.
	* semantics.c (finish_goto_stmt): The address of a label must go
	through the lvalue-to-rvalue conversion.

	PR c++/6196
	* g++.dg/ext/label1.C: New test.
	* g++.dg/ext/label2.C: Likewise.

From-SVN: r70932