[8.x] Move contracts

src/Illuminate/Collections/Collection.php

@@ -4,10 +4,13 @@
 
 use ArrayAccess;
 use ArrayIterator;
+use Illuminate\Contracts\Support\Arrayable;
+use Illuminate\Contracts\Support\Jsonable;
 use Illuminate\Macroable\Macroable;
+use JsonSerializable;
 use stdClass;
 
-class Collection implements ArrayAccess, Enumerable
+class Collection implements Arrayable, ArrayAccess, Enumerable, Jsonable, JsonSerializable
 {
     use EnumeratesValues, Macroable;
 

src/Illuminate/Collections/Enumerable.php

@@ -3,12 +3,9 @@
 namespace Illuminate\Collections;
 
 use Countable;
-use Illuminate\Contracts\Support\Arrayable;
-use Illuminate\Contracts\Support\Jsonable;
 use IteratorAggregate;
-use JsonSerializable;
 
-interface Enumerable extends Arrayable, Countable, IteratorAggregate, Jsonable, JsonSerializable
+interface Enumerable extends Countable, IteratorAggregate
 {
     /**
      * Create a new collection instance if the value isn't one already.

src/Illuminate/Collections/LazyCollection.php

@@ -4,11 +4,14 @@
 
 use ArrayIterator;
 use Closure;
+use Illuminate\Contracts\Support\Arrayable;
+use Illuminate\Contracts\Support\Jsonable;
 use Illuminate\Macroable\Macroable;
 use IteratorAggregate;
+use JsonSerializable;
 use stdClass;
 
-class LazyCollection implements Enumerable
+class LazyCollection implements Arrayable, Enumerable, Jsonable, JsonSerializable
 {
     use EnumeratesValues, Macroable;