gcc/cp/ChangeLog:

	PR c++/66786
	* pt.c (template_class_depth): Given a lambda type, iterate
	into its LAMBDA_TYPE_EXTRA_SCOPE field instead of its
	TYPE_CONTEXT.  Given a VAR_DECL, iterate into its
	CP_DECL_CONTEXT.

gcc/testsuite/ChangeLog:

	PR c++/66786
	* g++.dg/cpp1y/var-templ48.C: New test.
	* g++.dg/cpp1y/var-templ49.C: New test.

From-SVN: r233997