Test and fix deadlock parsing with partition info.

t/pt-deadlock-logger/samples/dead-lock-with-partitions.sql

@@ -0,0 +1,19 @@
+drop database if exists test;
+create database test;
+use test;
+
+CREATE TABLE dl (
+  id       INT NOT NULL,
+  store_id INT NOT NULL,
+  a        INT NOT NULL,
+  primary key (id, store_id),
+  unique key (store_id)
+) ENGINE=InnoDB
+
+PARTITION BY RANGE (store_id) (
+  PARTITION p0 VALUES LESS THAN (6),
+  PARTITION p1 VALUES LESS THAN (11)
+);
+
+insert into test.dl values
+  (1, 1, 0), (2, 2, 0), (3, 3, 0), (4, 4, 1), (5, 5, 1), (6, 6, 1);