Push straight to single instances in heap explorer

Take the user straight to the explorer itself if there is only one instance of the selected class

Classes/GlobalStateExplorers/FLEXLiveObjectsTableViewController.m

@@ -224,8 +224,8 @@ static const NSInteger kFLEXLiveObjectsSortBySizeIndex = 2;
 
 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
     NSString *className = self.filteredClassNames[indexPath.row];
-    FLEXObjectListViewController *instancesViewController = [FLEXObjectListViewController instancesOfClassWithName:className];
-    [self.navigationController pushViewController:instancesViewController animated:YES];
+    UIViewController *instances = [FLEXObjectListViewController instancesOfClassWithName:className];
+    [self.navigationController pushViewController:instances animated:YES];
 }
 
 @end

Classes/GlobalStateExplorers/FLEXObjectListViewController.h

@@ -10,7 +10,9 @@
 
 @interface FLEXObjectListViewController : FLEXFilteringTableViewController
 
-+ (instancetype)instancesOfClassWithName:(NSString *)className;
+/// This will either return a list of the instances, or take you straight
+/// to the explorer itself if there is only one instance.
++ (UIViewController *)instancesOfClassWithName:(NSString *)className;
 + (instancetype)subclassesOfClassWithName:(NSString *)className;
 + (instancetype)objectsWithReferencesToObject:(id)object;
 

Classes/GlobalStateExplorers/FLEXObjectListViewController.m

@@ -111,7 +111,7 @@
     return self;
 }
 
-+ (instancetype)instancesOfClassWithName:(NSString *)className {
++ (UIViewController *)instancesOfClassWithName:(NSString *)className {
     const char *classNameCString = className.UTF8String;
     NSMutableArray *instances = [NSMutableArray new];
     [FLEXHeapEnumerator enumerateLiveObjectsUsingBlock:^(__unsafe_unretained id object, __unsafe_unretained Class actualClass) {
@@ -127,6 +127,12 @@
     }];
     
     NSArray<FLEXObjectRef *> *references = [FLEXObjectRef referencingAll:instances];
+    if (references.count == 1) {
+        return [FLEXObjectExplorerFactory
+                explorerViewControllerForObject:references.firstObject.object
+        ];
+    }
+    
     FLEXObjectListViewController *controller = [[self alloc] initWithReferences:references];
     controller.title = [NSString stringWithFormat:@"%@ (%lu)", className, (unsigned long)instances.count];
     return controller;