removed wrong nil check

Author: sglienke

Source/Base/Collections/Spring.Collections.Base.pas

@@ -934,7 +934,6 @@ function TEnumerableBase<T>.Contains(const value: T;
   item: T;
 begin
 {$IFDEF SPRING_ENABLE_GUARD}
-  Guard.CheckNotNull<T>(value, 'value');
   Guard.CheckNotNull(Assigned(comparer), 'comparer');
 {$ENDIF}
 

Tests/Source/Base/Spring.Tests.Collections.pas

@@ -533,6 +533,7 @@   TTestCollectionList = class(TTestCase)
   TTestEnumerable = class(TTestCase)
   published
     procedure TestAggregate;
+    procedure TestContains_Nil;
     procedure TestToArray;
 
     procedure TestTryMethodsReturnDefaultWhenFalse;
@@ -3482,6 +3483,14 @@ procedure TTestEnumerable.TestAggregate;
   CheckEquals('dog lazy the over jumps fox brown quick the', reversed);
 end;
 
+procedure TTestEnumerable.TestContains_Nil;
+var
+  sut: IEnumerable<TObject>;
+begin
+  sut := TEnumerable.Repeated<TObject>(nil, 1);
+  CheckTrue(sut.Contains(nil));
+end;
+
 procedure TTestEnumerable.TestToArray;
 var
   sut: IEnumerable<Integer>;