string_marked_p  6739 src/alloc.c    		  && !string_marked_p (XSTRING (glyph->object)))
string_marked_p  7159 src/alloc.c    	    if (string_marked_p (ptr))
string_marked_p  7431 src/alloc.c          survives_p = string_marked_p (XSTRING (obj));