Address long-standing review comments.

tests/compiler/dart2js/resolver_test.dart

Index: tests/compiler/dart2js/resolver_test.dart
===================================================================
--- tests/compiler/dart2js/resolver_test.dart	(revision 26191)
+++ tests/compiler/dart2js/resolver_test.dart	(working copy)
@@ -76,6 +76,7 @@
   testIncrementsAndDecrements();
   testOverrideHashCodeCheck();
   testSupertypeOrder();
+  testConstructorArgumentMismatch();
 }
 
 testSupertypeOrder() {
@@ -575,6 +576,20 @@
   Expect.isTrue(element.isSynthesized);
 }
 
+testConstructorArgumentMismatch() {
+  String script = "class A {} foo() { print(new A(42)); }";
+  MockCompiler compiler = new MockCompiler();
+  compiler.parseScript(script);
+  FunctionElement fooElement = compiler.mainApp.find(buildSourceString('foo'));
+  Expect.isNotNull(fooElement);
+  fooElement.parseNode(compiler);
+  compiler.resolver.resolve(fooElement);
+
+  compareWarningKinds(
+      script, [MessageKind.INVALID_ARGUMENTS.warning], compiler.warnings);
+  compareWarningKinds(script, [], compiler.errors);
+}
+
 testTopLevelFields() {
   MockCompiler compiler = new MockCompiler();
   compiler.parseScript("int a;");