Issue #599: Fix the backwards check in lh_table_insert_w_hash() that was preventing adding more than 11 objects.

Add a test to check for this too.

linkhash.c

@@ -582,7 +582,7 @@ int lh_table_insert_w_hash(struct lh_table *t, const void *k, const void *v, con
 
 	if (t->count >= t->size * LH_LOAD_FACTOR) {
 		/* Avoid signed integer overflow with large tables. */
-		int new_size = INT_MAX / 2 < t->size ? t->size * 2 : INT_MAX;
+		int new_size = (t->size > INT_MAX / 2) ? INT_MAX : (t->size * 2);
 		if (t->size == INT_MAX || lh_table_resize(t, new_size) != 0)
 			return -1;
 	}