Make dartj2s do type conversions on constructor arguments

sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart

Index: sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart
diff --git a/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart b/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart
index 3dd4a77b42d0da9e03dce961d2a073f649c492ab..3db17c2cb464060bd7d2f7f65edb1e6b787bf969 100644
--- a/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart
+++ b/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart
@@ -1042,8 +1042,8 @@ class ObjectStore extends Interceptor {
       var key_2 = convertDartToNative_SerializedScriptValue(key);
       return _add_1(value_1, key_2);
     }
-    var value_3 = convertDartToNative_SerializedScriptValue(value);
-    return _add_2(value_3);
+    var value_1 = convertDartToNative_SerializedScriptValue(value);
+    return _add_2(value_1);
   }
   @JSName('add')
   @DomName('IDBObjectStore.add')
@@ -1081,13 +1081,13 @@ class ObjectStore extends Interceptor {
       return _createIndex_2(name, keyPath, options_1);
     }
     if ((keyPath is List<String> || keyPath == null) && options == null) {
-      List keyPath_2 = convertDartToNative_StringArray(keyPath);
-      return _createIndex_3(name, keyPath_2);
+      List keyPath_1 = convertDartToNative_StringArray(keyPath);
+      return _createIndex_3(name, keyPath_1);
     }
     if (options != null && (keyPath is List<String> || keyPath == null)) {
-      List keyPath_3 = convertDartToNative_StringArray(keyPath);
-      var options_4 = convertDartToNative_Dictionary(options);
-      return _createIndex_4(name, keyPath_3, options_4);
+      List keyPath_1 = convertDartToNative_StringArray(keyPath);
+      var options_2 = convertDartToNative_Dictionary(options);
+      return _createIndex_4(name, keyPath_1, options_2);
     }
     throw new ArgumentError("Incorrect number or type of arguments");
   }
@@ -1153,8 +1153,8 @@ class ObjectStore extends Interceptor {
       var key_2 = convertDartToNative_SerializedScriptValue(key);
       return _put_1(value_1, key_2);
     }
-    var value_3 = convertDartToNative_SerializedScriptValue(value);
-    return _put_2(value_3);
+    var value_1 = convertDartToNative_SerializedScriptValue(value);
+    return _put_2(value_1);
   }
   @JSName('put')
   @DomName('IDBObjectStore.put')