minor symfony#24312 [Lock] Add missing methods in LockInterface (jderusse)

This PR was merged into the 4.0-dev branch.

Discussion
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[Lock] Add missing methods in LockInterface

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no (because 3.4 is not yet released)
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | /
| License       | MIT
| Doc PR        | /

Add methods to the LockInterface

Commits
-------

e66e538 Add missing methods in LockInterface

Author: fabpot

src/Symfony/Component/Lock/Lock.php

@@ -133,17 +133,15 @@ public function release()
     }
 
     /**
-     * @return bool
+     * {@inheritdoc}
      */
     public function isExpired()
     {
         return $this->key->isExpired();
     }
 
     /**
-     * Returns the remaining lifetime.
-     *
-     * @return float|null Remaining lifetime in seconds. Null when the lock won't expire.
+     * {@inheritdoc}
      */
     public function getRemainingLifetime()
     {

src/Symfony/Component/Lock/LockInterface.php

@@ -56,4 +56,16 @@ public function isAcquired();
      * @throws LockReleasingException If the lock can not be released
      */
     public function release();
+
+    /**
+     * @return bool
+     */
+    public function isExpired();
+
+    /**
+     * Returns the remaining lifetime.
+     *
+     * @return float|null Remaining lifetime in seconds. Null when the lock won't expire.
+     */
+    public function getRemainingLifetime();
 }