error.c (pp_ggc_formatted_text): New.
* error.c (pp_ggc_formatted_text): New.
(type_as_string): Use it in lieu of pp_formatted_text.
(type_as_string_translate): Likewise.
(expr_as_string): Likewise.
(decl_as_string): Likewise.
(decl_as_string_translate): Likewise.
(lang_decl_name): Likewise.
(decl_to_string): Likewise.
(expr_to_string): Likewise.
(fndecl_to_string): Likewise.
(parm_to_string): Likewise.
(type_to_string): Likewise.
(args_to_string): Likewise.
(subst_to_string): Likewise.
From-SVN: r201873