* bitmap.c (bitmap_print): Qualify a char* with the `const' keyword.
        * bitmap.h (bitmap_print): Likewise.
        * c-decl.c (builtin_function, grokdeclarator, grokfield): Likewise.
        * c-lang.c (build_objc_string): Likewise.
        * c-lex.c (yyerror, extend_token_buffer): Likewise.  Don't include
        limits.h or ctype.h.  Remove unused variable `p'.
        * c-lex.h (yyerror): Qualify a char* with the `const' keyword.
        * c-pragma.c (handle_pragma_token): Likewise.
        * c-pragma.h (handle_pragma_token): Likewise.
        * c-tree.h (build_objc_string, builtin_function, grokfield,
        build_indirect_ref, lvalue_or_else, readonly_warning, error_init,
        pedwarn_init): Likewise.
        * c-typeck.c (convert_for_assignment, warn_for_assignment,
        push_string, warning_init, incomplete_type_error,
        build_indirect_ref, lvalue_or_else, readonly_warning,
        build_c_cast, spelling, push_member_name, print_spelling,
        error_init, pedwarn_init, start_init): Likewise.
        * objc/objc-act.c (build_objc_string): Likewise.
        * print-tree.c (print_node_brief, print_node): Likewise.
        * tree.h (lvalue_or_else, print_node, print_node_brief): Likewise.

From-SVN: r25296