Add types to shift operations

test/generated_sdk/lib/_internal/compiler/js_lib/js_number.dart

Index: test/generated_sdk/lib/_internal/compiler/js_lib/js_number.dart
diff --git a/test/generated_sdk/lib/_internal/compiler/js_lib/js_number.dart b/test/generated_sdk/lib/_internal/compiler/js_lib/js_number.dart
index aac12e28baa1a61ea8c96b49267e7f2e5cb5e565..6bc999a4239d7f1593466a32c4441323f871b3fa 100644
--- a/test/generated_sdk/lib/_internal/compiler/js_lib/js_number.dart
+++ b/test/generated_sdk/lib/_internal/compiler/js_lib/js_number.dart
@@ -393,9 +393,9 @@ class JSInt extends JSNumber implements int, double {
     return (i & 0x0000003F);
   }
 
-  static _shru(int value, int shift) => JS('int', '# >>> #', value, shift);
-  static _shrs(int value, int shift) => JS('int', '# >> #', value, shift);
-  static _ors(int a, int b) => JS('int', '# | #', a, b);
+  static int _shru(int value, int shift) => JS('int', '# >>> #', value, shift);

[Jennifer Messerly, 2015/05/20 17:50:19]

wow. I guess dart2js infers so they didn't really care whether it was written
here. Interestingly, the inferred type for them would be more precise too, since
'int' means not null in their type system.

+  static int _shrs(int value, int shift) => JS('int', '# >> #', value, shift);
+  static int _ors(int a, int b) => JS('int', '# | #', a, b);
 
   // Assumes i is <= 32-bit
   static int _spread(int i) {