re PR c++/19991 (Enum not accepted in array-size)

re PR c++/19991 (Enum not accepted in array-size)

	PR c++/19991
	* init.c (integral_constant_value): Iterate if the value of a decl
	is itself a constant.

	PR c++/20152
	* parser.c (cp_parser_class_head): Check for redefintions here.
	* semantics.c (begin_class_definition): Not here.

	PR c++/20153
	* decl2.c (build_anon_union_vars): Add type parameter.
	(finish_anon_union): Pass it.

	PR c++/20148
	* error.c (dump_expr): Do not print the body of a BIND_EXPR.
	Handle STATEMENT_LIST.

	PR c++/19991
	* g++.dg/parse/constant7.C: New test.

	PR c++/20152
	* g++.dg/parse/error27.C: New test.
	* g++.dg/template/qualttp15.C: Adjust error markers.
	* g++.old-deja/g++.other/struct1.C: Likewise.

	PR c++/20153
	* g++.dg/template/error17.C: New test.

	PR c++/20148
	* g++.dg/parser/error26.C: New test.

From-SVN: r95438