re PR c++/38064 ([c++0x] operator== doesn't work for enum classes)

re PR c++/38064 ([c++0x] operator== doesn't work for enum classes)

	PR c++/38064
	* typeck.c (cp_build_binary_op): Allow ENUMERAL_TYPE in
	arithmetic comparisons.
	(cp_common_type): Handle scoped enums.

	* call.c (promoted_arithmetic_type_p): Don't use INTEGRAL_TYPE_P.
	(add_builtin_candidate, add_builtin_candidates): Likewise.
	(convert_like_real): Likewise.
	* class.c (check_bitfield_decl): Likewise.
	* decl.c (check_static_variable_definition): Likewise.
	(compute_array_index_type): Likewise.
	* decl2.c (grokbitfield): Likewise.
	* init.c (build_new_1): Likewise.
	* pt.c (convert_nontype_argument): Likewise.
	(current_instantiation): Likewise.
	* tree.c (pod_type_p): Likewise.
	* typeck.c (build_static_cast_1): Likewise.
	(build_reinterpret_cast_1): Likewise.

From-SVN: r147854