read_stack_empty_p 3987 src/lread.c          if (read_stack_empty_p (base_sp))
read_stack_empty_p 4031 src/lread.c          if (read_stack_empty_p (base_sp))
read_stack_empty_p 4361 src/lread.c    	    if (!read_stack_empty_p (base_sp)