Always call the wrap_here method

This changes all existing calls to wrap_here to call the method on the
appropriate ui_file instead.  The choice of ui_file is determined by
context.

gdb/cli/cli-cmds.c

@@ -841,7 +841,7 @@ echo_command (const char *text, int from_tty)
   reset_terminal_style (gdb_stdout);
 
   /* Force this output to appear now.  */
-  wrap_here (0);
+  gdb_stdout->wrap_here (0);
   gdb_flush (gdb_stdout);
 }