Adding missing queue test.

The test wasn’t running because wasn’t prefixed with `test`.

//FREEBIE

Signal/test/util/QueueTest.m

@@ -1,15 +1,15 @@
-#import "QueueTest.h"
 #import "Queue.h"
+#import "QueueTest.h"
 #import "TestUtil.h"
 
 @implementation QueueTest
 
--(void) queueTest {
-    Queue* q = [Queue new];
+- (void)testQueue {
+    Queue *q = [Queue new];
     test(q.count == 0);
     testThrows(q.peek);
     testThrows([q dequeue]);
-    
+
     [q enqueue:@5];
     test(q.count == 1);
     test([q.peek isEqualToNumber:@5]);