Check in codegen test expectations.

test/codegen/expect/language/mixin_illegal_constructor_test_none_multi.js

Index: test/codegen/expect/language/mixin_illegal_constructor_test_none_multi.js
diff --git a/test/codegen/expect/language/mixin_illegal_constructor_test_none_multi.js b/test/codegen/expect/language/mixin_illegal_constructor_test_none_multi.js
new file mode 100644
index 0000000000000000000000000000000000000000..2e344691159d025155e71e87d882d973ed0d7434
--- /dev/null
+++ b/test/codegen/expect/language/mixin_illegal_constructor_test_none_multi.js
@@ -0,0 +1,52 @@
+dart_library.library('language/mixin_illegal_constructor_test_none_multi', null, /* Imports */[
+  'dart_sdk'
+], function load__mixin_illegal_constructor_test_none_multi(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const mixin_illegal_constructor_test_none_multi = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  mixin_illegal_constructor_test_none_multi.M0 = class M0 extends core.Object {
+    static new(a, b, c) {
+      return null;
+    }
+    static named() {
+      return null;
+    }
+  };
+  dart.setSignature(mixin_illegal_constructor_test_none_multi.M0, {
+    constructors: () => ({
+      new: dart.definiteFunctionType(mixin_illegal_constructor_test_none_multi.M0, [dart.dynamic, dart.dynamic, dart.dynamic]),
+      named: dart.definiteFunctionType(mixin_illegal_constructor_test_none_multi.M0, [])
+    })
+  });
+  mixin_illegal_constructor_test_none_multi.M1 = class M1 extends core.Object {
+    new() {
+    }
+  };
+  dart.setSignature(mixin_illegal_constructor_test_none_multi.M1, {
+    constructors: () => ({new: dart.definiteFunctionType(mixin_illegal_constructor_test_none_multi.M1, [])})
+  });
+  mixin_illegal_constructor_test_none_multi.M2 = class M2 extends core.Object {
+    named() {
+    }
+  };
+  dart.defineNamedConstructor(mixin_illegal_constructor_test_none_multi.M2, 'named');
+  dart.setSignature(mixin_illegal_constructor_test_none_multi.M2, {
+    constructors: () => ({named: dart.definiteFunctionType(mixin_illegal_constructor_test_none_multi.M2, [])})
+  });
+  mixin_illegal_constructor_test_none_multi.C0 = class C0 extends dart.mixin(core.Object, mixin_illegal_constructor_test_none_multi.M0) {};
+  mixin_illegal_constructor_test_none_multi.D0 = class D0 extends dart.mixin(core.Object, mixin_illegal_constructor_test_none_multi.M0) {
+    new() {
+      super.new();
+    }
+  };
+  mixin_illegal_constructor_test_none_multi.main = function() {
+    new mixin_illegal_constructor_test_none_multi.C0();
+    new mixin_illegal_constructor_test_none_multi.D0();
+  };
+  dart.fn(mixin_illegal_constructor_test_none_multi.main, VoidTodynamic());
+  // Exports:
+  exports.mixin_illegal_constructor_test_none_multi = mixin_illegal_constructor_test_none_multi;
+});