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* class.c (check_field_decls): Only check C_TYPE_FIELDS_READONLY for class types. * cp-tree.h (C_TYPE_FIELDS_READONLY): Use a lang-specific bit rather than TYPE_LANG_FLAG_0. (TYPE_BUILT_IN): Remove. (TYPE_DEPENDENT_P): New macro. (TYPE_DEPENDENT_P_VALID): Likewise. (lang_type_class): Add fields_readonly. * decl.c (record_builtin_type): Don't set TYPE_BUILT_IN. * pt.c (dependent_type_p_r): New function, split out from ... (dependent_type_p): ... here. Memoize results. * search.c (dependent_base_p): Use dependent_type_p, not uses_template_parms. * typeck.c (build_modify_expr): Only check C_TYPE_FIELDS_READONLY for class types. From-SVN: r62143
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