PR c++/19208
	* pt.c (fold_decl_constant_value): Always call fold_non_dependent_expr
	at least once.
	(tsubst): Use fold_decl_constant_value in place of a bare call to
	integral_constant_value.

	PR c++/19208
	* g++.dg/template/array11.C: New test.

From-SVN: r94006