Report errors when the number of arguments don't match the number of parameters in a const construc…

tests/language/compile_time_constant_arguments_test.dart

Index: tests/language/compile_time_constant_arguments_test.dart
===================================================================
--- tests/language/compile_time_constant_arguments_test.dart	(revision 0)
+++ tests/language/compile_time_constant_arguments_test.dart	(revision 0)
@@ -0,0 +1,22 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+class A {
+  const A(a);
+  const A.named({a: 42});
+  const A.optional([a]);
+}
+
+main() {
+  const A(1);
+  const A(); /// 01: compile-time error, static type warning
+  const A(1, 2); /// 02: compile-time error, static type warning
+  const A.named();
+  const A.named(b: 1); /// 03: compile-time error, static type warning
+  const A.named(a: 1, a: 2); /// 04: compile-time error, static type warning
+  const A.named(a: 1, b: 2); /// 05: compile-time error, static type warning
+  const A.optional();
+  const A.optional(42);
+  const A.optional(42, 54); /// 06: compile-time error, static type warning
+}