Big doubles are now integers too.

tests/compiler/dart2js_extra/constant_javascript_semantics_test.dart

Index: tests/compiler/dart2js_extra/constant_javascript_semantics_test.dart
diff --git a/tests/compiler/dart2js_extra/constant_javascript_semantics_test.dart b/tests/compiler/dart2js_extra/constant_javascript_semantics_test.dart
index 8323c306c298ca7f885beed610ff3de83531e6f7..dbea32306bb8409444740e10d722f39693bbdc71 100644
--- a/tests/compiler/dart2js_extra/constant_javascript_semantics_test.dart
+++ b/tests/compiler/dart2js_extra/constant_javascript_semantics_test.dart
@@ -21,8 +21,7 @@ main() {
   Expect.equals(0, x - y);
   Expect.equals(0, foo());
   Expect.isTrue(x is double);
-  // TODO(floitsch): we probably want to change this to be true.
-  Expect.isFalse(x is int);
+  Expect.isTrue(x is int);
   Expect.equals(8, b);
   Expect.equals(8, 1.0 << 3);  // This would not be valid with Dart semantics.
   Expect.isTrue(1 == 1.0);