VECTOR_IN_BLOCK  3234 src/alloc.c    	   VECTOR_IN_BLOCK (vector, block); vector = next)
VECTOR_IN_BLOCK  3259 src/alloc.c    	      while (VECTOR_IN_BLOCK (next, block) && !vector_marked_p (next));
VECTOR_IN_BLOCK  3264 src/alloc.c    		  && !VECTOR_IN_BLOCK (next, block))
VECTOR_IN_BLOCK  4780 src/alloc.c      while (VECTOR_IN_BLOCK (vector, block) && vector <= vp)