Revert "Compile-time error if mixin class has a fact

tests/language/mixin_illegal_constructor_test.dart

Index: tests/language/mixin_illegal_constructor_test.dart
diff --git a/tests/language/mixin_illegal_constructor_test.dart b/tests/language/mixin_illegal_constructor_test.dart
index 8884084406230c2fdfa28fbdf8a0f3c22990397e..d0a59fbdd5349d35911ef835039116ad1350642e 100644
--- a/tests/language/mixin_illegal_constructor_test.dart
+++ b/tests/language/mixin_illegal_constructor_test.dart
@@ -15,7 +15,7 @@ class M2 {
   M2.named();
 }
 
-class C0 = Object with M0;      /// 20: compile-time error
+class C0 = Object with M0;
 class C1 = Object with M1;      /// 01: compile-time error
 class C2 = Object with M2;      /// 02: compile-time error
 class C3 = Object with M0, M1;  /// 03: compile-time error
@@ -23,7 +23,7 @@ class C4 = Object with M1, M0;  /// 04: compile-time error
 class C5 = Object with M0, M2;  /// 05: compile-time error
 class C6 = Object with M2, M0;  /// 06: compile-time error
 
-class D0 extends Object with M0 { }      /// 21: compile-time error
+class D0 extends Object with M0 { }
 class D1 extends Object with M1 { }      /// 07: compile-time error
 class D2 extends Object with M2 { }      /// 08: compile-time error
 class D3 extends Object with M0, M1 { }  /// 09: compile-time error
@@ -32,7 +32,7 @@ class D5 extends Object with M0, M2 { }  /// 11: compile-time error
 class D6 extends Object with M2, M0 { }  /// 12: compile-time error
 
 main() {
-  new C0();  /// 20: continued
+  new C0();
   new C1();  /// 01: continued
   new C2();  /// 02: continued
   new C3();  /// 03: continued
@@ -40,11 +40,16 @@ main() {
   new C5();  /// 05: continued
   new C6();  /// 06: continued
 
-  new D0();  /// 21: continued
+  new D0();
   new D1();  /// 07: continued
   new D2();  /// 08: continued
   new D3();  /// 09: continued
   new D4();  /// 10: continued
   new D5();  /// 11: continued
   new D6();  /// 12: continued
+
+  new C0(1,2,3);   /// 13: static type warning, runtime error

[Ivan Posva, 2016/02/17 07:51:26]

As far as I understood from Gilad even if we allowed mixins with factory
constructors, the resulting class should not contain the factory constructors.

[Jacob, 2016/02/19 20:53:03]

Correct.

+  new C0.named();  /// 14: static type warning, runtime error
+  new D0(1,2,3);   /// 15: static type warning, runtime error
+  new D0.named();  /// 16: static type warning, runtime error
 }