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./: * dse.c (struct store_info): Rename bitmap field to bmap. Change all uses. * c-decl.c (in_struct, struct_types): Remove. (struct c_binding): Add in_struct field. (c_binding_ptr): Define type, along with VEC. (struct c_struct_parse_info): Define. (struct_parse_info): New static variable. (bind): Initialize in_struct field. (start_struct): Remove enclosing_in_struct and enclosing_struct_types parameters. Add enclosing_struct_parse_info parameter. Change all callers. Set struct_parse_info rather than in_struct and struct_types. (grokfield): If -Wc++-compat and there is a symbol binding for the field name, set the in_struct flag and push it on the struct_parse_info->fields vector. (warn_cxx_compat_finish_struct): New static function. (finish_struct): Remove enclosing_in_struct and enclosing_struct_types parameters. Add enclosing_struct_parse_info parameter. Change all callers. Don't set C_TYPE_DEFINED_IN_STRUCT here. Call warn_cxx_compat_finish_struct. Free struct_parse_info and set to parameter. Only push on struct_types if warn_cxx_compat. (finish_enum): Only push on struct_types if warn_cxx_compat. (declspecs_add_type): Add loc parameter. Change all callers. Change all error calls to error_at. Pass loc, not input_location, to pedwarn calls. Warn if -Wc++-compat and a typedef name is defined in a struct. If -Wc++-compat and parsing a struct, record that a typedef name was used. * c-parser.c (c_parser_declspecs): Get location to pass to declspecs_add_type. (c_parser_struct_or_union_specifier): Update calls to start_struct and finish_struct. * c-tree.h (struct c_struct_parse_info): Declare. (finish_struct, start_struct): Update declarations. (declspecs_add_type): Update declaration. objc/: * objc-act.c (objc_in_struct, objc_struct_types): Remove. (objc_struct_info): New static variable. (objc_start_struct): Pass &objc_struct_info, not &objc_in_struct and &objc_struct_types, to start_struct. (objc_finish_struct): Likewise for finish_struct. objcp/: * objcp-decl.h (start_struct): Remove in_struct and struct_types parameters. Add struct_info parameter. (finish_struct): Likewise. testsuite/: * gcc.dg/Wcxx-compat-15.c: New testcase. From-SVN: r148709