Make List constructor give better error messages for non-int arguments

runtime/vm/object_test.cc

 // 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.
 
 #include "platform/globals.h"
 
 #include "vm/assembler.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
@@ skipping 1946 matching lines @@
   OS::SNPrint(buffer, sizeof(buffer),
       "main() {\n"
       "  new List(%" Pd ");\n"
       "}\n",
       length);
   Dart_Handle lib = TestCase::LoadTestScript(buffer, NULL);
   EXPECT_VALID(lib);
   Dart_Handle result = Dart_Invoke(lib, NewString("main"), 0, NULL);
   OS::SNPrint(buffer, sizeof(buffer),
       "Unhandled exception:\n"
-      "Invalid argument(s): Length (%" Pd ") must be an integer "
-      "in the range [0..%" Pd "].",
-      length, Array::kMaxElements);
+      "RangeError (length): Invalid value: "
+      "Not in range 0..%" Pd ", inclusive: %" Pd,
+      Array::kMaxElements, length);
   EXPECT_ERROR(result, buffer);
 }
 
 
 TEST_CASE(ArrayLengthNegativeOne) { TestIllegalArrayLength(-1); }
 TEST_CASE(ArrayLengthSmiMin) { TestIllegalArrayLength(kSmiMin); }
 TEST_CASE(ArrayLengthOneTooMany) {
   const intptr_t kOneTooMany = Array::kMaxElements + 1;
   ASSERT(kOneTooMany >= 0);
   TestIllegalArrayLength(kOneTooMany);
@@ skipping 2723 matching lines @@
   EXPECT(iterator.MoveNext());
   object = iterator.CurrentKey();
   EXPECT_STREQ("z", object.ToCString());
   object = iterator.CurrentValue();
   EXPECT_STREQ("5", object.ToCString());
 
   EXPECT(!iterator.MoveNext());
 }
 
 }  // namespace dart