re PR c++/45049 (ICE: tree check: expected tree that contains 'decl minimal' structure, have 'tree_list' in push_overloaded_decl, at cp/name-lookup.c:2160)

gcc/cp/
	PR c++/45049
	* name-lookup.c (push_overloaded_decl): Change DECL_CHAIN to
	TREE_CHAIN.

gcc/testsuite/
	PR c++/45049
	* g++.dg/pr45049-1.C: New test.
	* g++.dg/pr45049-2.C: New test.

From-SVN: r163344