PR c++/67273
	PR c++/79253
	* pt.c: (instantiate_decl): Push to top level when current
	function scope doesn't match.  Only push lmabda scope stack when
	pushing to top.

	PR c++/67273
	PR c++/79253
	* g++.dg/cpp1y/pr67273.C: New.
	* g++.dg/cpp1y/pr79253.C: New.

From-SVN: r245067