* parser.c (cp_parser_ctor_initializer_opt_and_function_body):

	Make sure a constexpr ctor has an empty body.
	* class.c (type_has_constexpr_default_constructor): New.
	* cp-tree.h: Declare it.
	* init.c (perform_member_init): Complain about uninitialized
	member in constexpr ctor.
	(emit_mem_initializers): And uninitialized base.
	* decl.c (check_tag_decl): Fix typo.

	* semantics.c (valid_type_in_constexpr_fundecl_p): New fn.
	(is_valid_constexpr_fn): New fn.
	(validate_constexpr_fundecl): Use it.
	* decl.c (validate_constexpr_redeclaration): New.
	(duplicate_decls): Use it.
	(cp_finish_decl): Call validate_constexpr_fundecl and
	ensure_literal_type_for_constexpr_object here.
	(start_decl): Not here.  Don't ICE on constexpr reference.
	(check_for_uninitialized_const_var): Don't handle constexpr specially.
	(grokfndecl): Set DECL_DECLARED_CONSTEXPR_P.
	(check_static_variable_definition): Give friendly message about
	missing constexpr.
	(grokdeclarator): Complain about typedef and volatile with constexpr.
	Reorganize.  Give sorry about non-static data members in C++0x mode.
	(start_preparsed_function): Check validate_constexpr_fundecl here.
	(check_function_type): Not here.
	* decl2.c (finish_static_data_member_decl): Don't complain about
	in-class init.
	* parser.c (CP_PARSER_FLAGS_ONLY_TYPE_OR_CONSTEXPR): New.
	(cp_parser_condition): Pass it to cp_parser_decl_specifier_seq.
	(cp_parser_decl_specifier_seq): Handle it.
	(cp_parser_explicit_instantiation): Diagnose inline and constexpr.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166013 138bc75d-0d04-0410-961f-82ee72b054a4

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