re PR c++/47199 ([C++0x] ICE: expected class 'type', have 'declaration' (function_decl) in same_type_ignoring_top_level_qualifiers_p, at cp/typeck.c:1407 with -fno-elide-constructors)

	PR c++/47199
	* semantics.c (cxx_eval_call_expression): Call
	cxx_eval_constant_expression in trivial shortcut.

From-SVN: r170356