Expose remaining 'errors' in an unified dart:core.

runtime/lib/error.cc

 // Copyright (c) 2012, 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 file.
 
 #include "lib/error.h"
 
 #include "vm/bootstrap_natives.h"
 #include "vm/exceptions.h"
 #include "vm/object_store.h"
 #include "vm/runtime_entry.h"
@@ skipping 61 matching lines @@
 
 
 // Allocate and throw a new FallThroughError.
 // Arg0: index of the case clause token into which we fall through.
 // Return value: none, throws an exception.
 DEFINE_NATIVE_ENTRY(FallThroughError_throwNew, 1) {
   GET_NATIVE_ARGUMENT(Smi, smi_pos, arguments->At(0));
   intptr_t fallthrough_pos = smi_pos.Value();
 
   // Allocate a new instance of type FallThroughError.
-  const Instance& fallthrough_error =
-      Instance::Handle(Exceptions::NewInstance("FallThroughError"));
+  const Instance& fallthrough_error = Instance::Handle(Exceptions::NewInstance(
+      "FallThroughErrorImplementation"));
   ASSERT(!fallthrough_error.IsNull());
 
   // Initialize 'url' and 'line' fields.
   DartFrameIterator iterator;
   iterator.NextFrame();  // Skip native call.
   const Script& script = Script::Handle(Exceptions::GetCallerScript(&iterator));
   const Class& cls = Class::Handle(fallthrough_error.clazz());
   Exceptions::SetField(fallthrough_error, cls, "url",
                        String::Handle(script.url()));
   intptr_t line, column;
@@ skipping 28 matching lines @@
   intptr_t line, column;
   script.GetTokenLocation(call_pos, &line, &column);
   Exceptions::SetField(resolution_exception, cls, "failedResolutionLine",
                        String::Handle(script.GetLine(line)));
 
   Exceptions::Throw(resolution_exception);
   UNREACHABLE();
 }
 
 }  // namespace dart