branches/zip: Dump the compressed page when fil_page_get_type() returns

an incorrect value.  This is to track down Mantis issue#63 and issue#65.

buf_LRU_block_remove_hashed_page(),
buf_flush_init_for_writing(): dump the compressed page before ut_error.

buf/buf0flu.c

@@ -634,6 +634,10 @@ buf_flush_init_for_writing(
 			return;
 		}
 
+		ut_print_timestamp(stderr);
+		fputs("  InnoDB: ERROR: The compressed page to be written"
+		      " seems corrupt:", stderr);
+		ut_print_buf(stderr, page_zip->data, zip_size);
 		ut_error;
 	}
 

buf/buf0lru.c

@@ -1484,6 +1484,11 @@ buf_LRU_block_remove_hashed_page(
 #endif /* UNIV_ZIP_DEBUG */
 				break;
 			default:
+				ut_print_timestamp(stderr);
+				fputs("  InnoDB: ERROR: The compressed page"
+				      " to be evicted seems corrupt:", stderr);
+				ut_print_buf(stderr, bpage->zip.data,
+					     page_zip_get_size(&bpage->zip));
 				ut_error;
 			}