Handle int/double literals in inference

tests/compiler/dart2js/inference/data/simple.dart

Index: tests/compiler/dart2js/inference/data/simple.dart
diff --git a/tests/compiler/dart2js/inference/data/simple.dart b/tests/compiler/dart2js/inference/data/simple.dart
index b152304c789b1e0edb1a7ff3287d49d438de961b..0ed282326c5cddb48071212571915ed8f7d52980 100644
--- a/tests/compiler/dart2js/inference/data/simple.dart
+++ b/tests/compiler/dart2js/inference/data/simple.dart
@@ -2,5 +2,26 @@
 // 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.
 
+/*zero:[exact=JSUInt31]*/
+zero() => 0;
+
+/*one:[exact=JSUInt31]*/
+one() => 1;
+
+/*half:[exact=JSDouble]*/
+half() => 0.5;
+
+/*large:[subclass=JSUInt32]*/
+large() => 2147483648;
+
+/*huge:[subclass=JSPositiveInt]*/
+huge() => 4294967296;
+
 /*main:[null]*/
-main() {}
+main() {
+  zero();
+  one();
+  half();
+  large();
+  huge();
+}