dart2js cps: Replace GetLazyStatic with GetStatic.

pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart

Index: pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart
diff --git a/pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart b/pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart
index 84c5200515ff58d2f8c9d1082a5874ac7c05177c..84bfaac2d3a5a4e2aa1193c63b407a8cec776481 100644
--- a/pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart
+++ b/pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart
@@ -644,9 +644,7 @@ class Builder implements cps_ir.Visitor/*<NodeCallback|Node>*/ {
   }
 
   Expression visitGetLazyStatic(cps_ir.GetLazyStatic node) {
-    // In the tree IR, GetStatic handles lazy fields because we do not need
-    // as fine-grained control over side effects.
-    return new GetStatic(node.element, node.sourceInformation);
+    return new GetStatic.lazy(node.element, node.sourceInformation);
   }
 
   @override