typeInformation in CreateInstance is a kind of TypeExpression

pkg/compiler/lib/src/js_backend/codegen/codegen.dart

Index: pkg/compiler/lib/src/js_backend/codegen/codegen.dart
diff --git a/pkg/compiler/lib/src/js_backend/codegen/codegen.dart b/pkg/compiler/lib/src/js_backend/codegen/codegen.dart
index e7cc68a4c981c0a13b9645a0b23af79b8b9cae2c..ae281954f89c44bb36cd09ed629e14d04d6c0877 100644
--- a/pkg/compiler/lib/src/js_backend/codegen/codegen.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen/codegen.dart
@@ -831,13 +831,12 @@ class CodeGenerator extends tree_ir.StatementVisitor
         visitExpressionList(node.arguments))
         .withSourceInformation(node.sourceInformation);
 
-    List<tree_ir.Expression> typeInformation = node.typeInformation;
-    assert(typeInformation.isEmpty ||
-        typeInformation.length == classElement.typeVariables.length);
-    if (typeInformation.isNotEmpty) {
+    tree_ir.Expression typeInformation = node.typeInformation;
+    //assert(typeInformation.isEmpty ||
+    //    typeInformation.length == classElement.typeVariables.length);

[asgerf, 2016/01/26 10:30:00]

Clean up outcommented code.

[sra1, 2016/01/26 22:21:08]

Done. It had to be removed since it can be a variable after GVN

+    if (typeInformation != null) {
       FunctionElement helper = glue.getAddRuntimeTypeInformation();
-      js.Expression typeArguments = new js.ArrayInitializer(
-          visitExpressionList(typeInformation));
+      js.Expression typeArguments = visitExpression(typeInformation);
       return buildStaticHelperInvocation(helper,
           <js.Expression>[instance, typeArguments],
           sourceInformation: node.sourceInformation);
@@ -989,7 +988,13 @@ class CodeGenerator extends tree_ir.StatementVisitor
   @override
   js.Expression visitTypeExpression(tree_ir.TypeExpression node) {
     List<js.Expression> arguments = visitExpressionList(node.arguments);
-    return glue.generateTypeRepresentation(node.dartType, arguments, registry);
+    if (node.isForInstance) {
+      registry.registerInstantiatedClass(glue.listClass);
+      return new js.ArrayInitializer(arguments);
+    } else {
+      return glue.generateTypeRepresentation(
+          node.dartType, arguments, registry);
+    }
   }
 
   js.Node handleForeignCode(tree_ir.ForeignCode node) {