Check in codegen test expectations.

test/codegen/expect/language/type_promotion_multiple_test_none_multi.js

Index: test/codegen/expect/language/type_promotion_multiple_test_none_multi.js
diff --git a/test/codegen/expect/language/type_promotion_multiple_test_none_multi.js b/test/codegen/expect/language/type_promotion_multiple_test_none_multi.js
new file mode 100644
index 0000000000000000000000000000000000000000..a0e55b5e02e08d54e023c0bde6ba78414c5a57ec
--- /dev/null
+++ b/test/codegen/expect/language/type_promotion_multiple_test_none_multi.js
@@ -0,0 +1,79 @@
+dart_library.library('language/type_promotion_multiple_test_none_multi', null, /* Imports */[
+  'dart_sdk'
+], function load__type_promotion_multiple_test_none_multi(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const type_promotion_multiple_test_none_multi = Object.create(null);
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let ATovoid = () => (ATovoid = dart.constFn(dart.definiteFunctionType(dart.void, [type_promotion_multiple_test_none_multi.A])))();
+  type_promotion_multiple_test_none_multi.A = class A extends core.Object {
+    new() {
+      this.a = "a";
+    }
+  };
+  type_promotion_multiple_test_none_multi.B = class B extends type_promotion_multiple_test_none_multi.A {
+    new() {
+      this.b = "b";
+      super.new();
+    }
+  };
+  type_promotion_multiple_test_none_multi.C = class C extends type_promotion_multiple_test_none_multi.B {
+    new() {
+      this.c = "c";
+      super.new();
+    }
+  };
+  type_promotion_multiple_test_none_multi.D = class D extends type_promotion_multiple_test_none_multi.A {
+    new() {
+      this.d = "d";
+      super.new();
+    }
+  };
+  type_promotion_multiple_test_none_multi.E = class E extends core.Object {
+    new() {
+      this.a = "";
+      this.b = "";
+      this.c = "";
+      this.d = "";
+    }
+  };
+  type_promotion_multiple_test_none_multi.E[dart.implements] = () => [type_promotion_multiple_test_none_multi.C, type_promotion_multiple_test_none_multi.D];
+  type_promotion_multiple_test_none_multi.main = function() {
+    type_promotion_multiple_test_none_multi.test(new type_promotion_multiple_test_none_multi.E());
+  };
+  dart.fn(type_promotion_multiple_test_none_multi.main, VoidTovoid());
+  type_promotion_multiple_test_none_multi.test = function(a1) {
+    let a2 = new type_promotion_multiple_test_none_multi.E();
+    core.print(a1.a);
+    core.print(a2.a);
+    if (type_promotion_multiple_test_none_multi.B.is(a1) && type_promotion_multiple_test_none_multi.C.is(a2)) {
+      core.print(a1.a);
+      core.print(a1.b);
+      core.print(a2.a);
+      core.print(a2.b);
+      core.print(a2.c);
+      if (type_promotion_multiple_test_none_multi.C.is(a1) && type_promotion_multiple_test_none_multi.D.is(a2)) {
+        core.print(a1.a);
+        core.print(a1.b);
+        core.print(a1.c);
+        core.print(a2.a);
+        core.print(a2.b);
+        core.print(a2.c);
+      }
+    }
+    let o1 = type_promotion_multiple_test_none_multi.B.is(a1) && type_promotion_multiple_test_none_multi.C.is(a2) ? dart.str`${a1.a}` + dart.str`${a1.b}` + dart.str`${a2.a}` + dart.str`${a2.b}` + dart.str`${a2.c}` : dart.str`${a1.a}` + dart.str`${a2.a}`;
+    if (type_promotion_multiple_test_none_multi.C.is(a2) && type_promotion_multiple_test_none_multi.B.is(a1) && type_promotion_multiple_test_none_multi.C.is(a1) && type_promotion_multiple_test_none_multi.B.is(a2) && type_promotion_multiple_test_none_multi.D.is(a2)) {
+      core.print(a1.a);
+      core.print(a1.b);
+      core.print(a1.c);
+      core.print(a2.a);
+      core.print(a2.b);
+      core.print(a2.c);
+    }
+  };
+  dart.fn(type_promotion_multiple_test_none_multi.test, ATovoid());
+  // Exports:
+  exports.type_promotion_multiple_test_none_multi = type_promotion_multiple_test_none_multi;
+});