branches/zip: Assert in the adaptive hash that the insert buffer B-tree

is not indexed.

btr_search_update_hash_ref(), btr_search_drop_page_hash_index(),
btr_search_build_page_hash_index(), btr_search_update_hash_on_delete(),
btr_search_update_hash_node_on_insert(), btr_search_update_hash_on_insert(),
btr_search_validate():
Assert that hashed blocks do not belong to the insert buffer tree.

btr_search_move_or_delete_hash_entries():
When invoked on the insert buffer tree, assert that neither block is hashed.

btr/btr0sea.c

@@ -438,10 +438,16 @@ btr_search_update_hash_ref(
 #endif /* UNIV_SYNC_DEBUG */
 	ut_ad(page_align(btr_cur_get_rec(cursor))
 	      == buf_block_get_frame(block));
-	ut_a(!block->is_hashed || block->index == cursor->index);
 
-	if (block->is_hashed
-	    && (info->n_hash_potential > 0)
+	if (!block->is_hashed) {
+
+		return;
+	}
+
+	ut_a(block->index == cursor->index);
+	ut_a(!dict_index_is_ibuf(cursor->index));
+
+	if ((info->n_hash_potential > 0)
 	    && (block->curr_n_fields == info->n_fields)
 	    && (block->curr_n_bytes == info->n_bytes)
 	    && (block->curr_left_side == info->left_side)) {
@@ -981,6 +987,7 @@ btr_search_drop_page_hash_index(
 	n_fields = block->curr_n_fields;
 	n_bytes = block->curr_n_bytes;
 	index = block->index;
+	ut_a(!dict_index_is_ibuf(index));
 
 	/* NOTE: The fields of block must not be accessed after
 	releasing btr_search_latch, as the index page might only
@@ -1163,6 +1170,7 @@ btr_search_build_page_hash_index(
 	rec_offs_init(offsets_);
 
 	ut_ad(index);
+	ut_a(!dict_index_is_ibuf(index));
 
 	table = btr_search_sys->hash_index;
 	page = buf_block_get_frame(block);
@@ -1337,6 +1345,8 @@ btr_search_move_or_delete_hash_entries(
 #endif /* UNIV_SYNC_DEBUG */
 	ut_a(!new_block->is_hashed || new_block->index == index);
 	ut_a(!block->is_hashed || block->index == index);
+	ut_a(!(new_block->is_hashed || block->is_hashed)
+	     || !dict_index_is_ibuf(index));
 
 	rw_lock_s_lock(&btr_search_latch);
 
@@ -1409,6 +1419,7 @@ btr_search_update_hash_on_delete(
 
 	ut_a(block->index == cursor->index);
 	ut_a(block->curr_n_fields + block->curr_n_bytes > 0);
+	ut_a(!dict_index_is_ibuf(cursor->index));
 
 	table = btr_search_sys->hash_index;
 
@@ -1455,6 +1466,7 @@ btr_search_update_hash_node_on_insert(
 	}
 
 	ut_a(block->index == cursor->index);
+	ut_a(!dict_index_is_ibuf(cursor->index));
 
 	rw_lock_x_lock(&btr_search_latch);
 
@@ -1523,6 +1535,7 @@ btr_search_update_hash_on_insert(
 	}
 
 	ut_a(block->index == cursor->index);
+	ut_a(!dict_index_is_ibuf(cursor->index));
 
 	index_id = cursor->index->id;
 
@@ -1692,6 +1705,8 @@ btr_search_validate(void)
 				continue;
 			}
 
+			ut_a(!dict_index_is_ibuf(block->index));
+
 			offsets = rec_get_offsets((const rec_t*) node->data,
 						  block->index, offsets,
 						  block->curr_n_fields