Change error handling.

lib/kernel.dart

 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE.md file.
 
 library rasta.kernel;
 
 import 'dart:async' show
     Future;
 
 import 'dart:collection' show
@@ skipping 625 matching lines @@
   }
 
   bool get isInternalStateConsistent {
     if (workQueue.isNotEmpty) {
       print("Kernel workQueue isn't empty.");
       return false;
     }
     return compiler.isInternalStateConsistent;
   }
 
-  ir.Procedure getDynamicErrorHandler() {
+  ir.Procedure getUnresolvedConstructorBuilder() {
     LibraryElement internal =
-        compiler.libraryLoader.lookupLibrary(Uri.parse("dart:_internal"));
+        compiler.libraryLoader.lookupLibrary(Uri.parse("dart:core"));
     FunctionElement function =
-        internal.implementation.localLookup("_dynamicError");
+        internal.implementation.localLookup("_unresolvedConstructorError");
+    return functionToIr(function);
+  }
+
+  ir.Procedure getMalformedTypeErrorBuilder() {
+    LibraryElement internal =
+        compiler.libraryLoader.lookupLibrary(Uri.parse("dart:core"));
+    FunctionElement function =
+        internal.implementation.localLookup("_malformedTypeError");
     return functionToIr(function);
   }
 }
 
 class ConstructorTarget {
   final ConstructorElement element;
   final DartType type;
 
   ConstructorTarget(this.element, this.type);
 
   String toString() => "ConstructorTarget($element, $type)";
 }