dart2js cps: Copy allocation site type when cloning.

pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart

Index: pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart
diff --git a/pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart b/pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart
index 96b094540f230ffe0a00a57bc5e15785336c88c6..49c8a6b1117ba98f416c521d72fc2407718a4fa5 100644
--- a/pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart
+++ b/pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart
@@ -2535,7 +2535,8 @@ class DefinitionCopyingVisitor extends Visitor<Definition> {
   Definition visitInvokeConstructor(InvokeConstructor node) {
     return new InvokeConstructor(node.dartType, node.target, node.selector,
         getList(node.arguments),
-        node.sourceInformation);
+        node.sourceInformation)
+        ..allocationSiteType = node.allocationSiteType;
   }
 
   Definition visitTypeCast(TypeCast node) {
@@ -2569,7 +2570,8 @@ class DefinitionCopyingVisitor extends Visitor<Definition> {
   }
 
   Definition visitLiteralList(LiteralList node) {
-    return new LiteralList(node.dartType, getList(node.values));
+    return new LiteralList(node.dartType, getList(node.values))
+        ..allocationSiteType = node.allocationSiteType;
   }
 
   Definition visitLiteralMap(LiteralMap node) {