fix #29753, use ES5 constructors for ddc

pkg/dev_compiler/test/codegen_expected/unresolved_names.js

Index: pkg/dev_compiler/test/codegen_expected/unresolved_names.js
diff --git a/pkg/dev_compiler/test/codegen_expected/unresolved_names.js b/pkg/dev_compiler/test/codegen_expected/unresolved_names.js
index 292d42a618563118a74b72c71fe5ed9c99d1501d..a1ae51506f05dd0b29153c93c1a1bde75380893b 100644
--- a/pkg/dev_compiler/test/codegen_expected/unresolved_names.js
+++ b/pkg/dev_compiler/test/codegen_expected/unresolved_names.js
@@ -6,10 +6,12 @@ define(['dart_sdk'], function(dart_sdk) {
   const unresolved_names = Object.create(null);
   let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.fnType(dart.dynamic, [])))();
   unresolved_names.C = class C extends core.Object {};
+  (unresolved_names.C.new = function() {
+  }).prototype = unresolved_names.C.prototype;
   unresolved_names.main = function() {
-    new (dart.throw("compile error: unresolved constructor: " + "dynamic" + "." + "<unnamed>"))();
-    new (dart.throw("compile error: unresolved constructor: " + "C" + "." + "bar"))();
-    core.print(dart.throw("compile error: unresolved identifier: " + "baz"));
+    new (dart.throw(Error("compile error: unresolved constructor: " + "dynamic" + "." + "<unnamed>")))();
+    new (dart.throw(Error("compile error: unresolved constructor: " + "C" + "." + "bar")))();
+    core.print(dart.throw(Error("compile error: unresolved identifier: " + "baz")));
     core.print(dart.dload(unresolved_names.C, 'quux'));
   };
   dart.fn(unresolved_names.main, VoidTodynamic());