Add test precompiling dart2js.

runtime/vm/snapshot.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 "vm/snapshot.h"
 
 #include "platform/assert.h"
 #include "vm/bootstrap.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart.h"
@@ skipping 1003 matching lines @@
 RawGrowableObjectArray* SnapshotReader::NewGrowableObjectArray() {
   ALLOC_NEW_OBJECT(GrowableObjectArray);
 }
 
 
 RawWeakProperty* SnapshotReader::NewWeakProperty() {
   ALLOC_NEW_OBJECT(WeakProperty);
 }
 
 
+RawJSRegExp* SnapshotReader::NewJSRegExp() {
+  ALLOC_NEW_OBJECT(JSRegExp);
+}
+
+
 RawFloat32x4* SnapshotReader::NewFloat32x4(float v0, float v1, float v2,
                                            float v3) {
   ASSERT(kind_ == Snapshot::kFull);
   ASSERT_NO_SAFEPOINT_SCOPE();
   RawFloat32x4* obj = reinterpret_cast<RawFloat32x4*>(
       AllocateUninitialized(kFloat32x4Cid, Float32x4::InstanceSize()));
   obj->ptr()->value_[0] = v0;
   obj->ptr()->value_[1] = v1;
   obj->ptr()->value_[2] = v2;
   obj->ptr()->value_[3] = v3;
@@ skipping 1545 matching lines @@
   if (setjmp(*jump.Set()) == 0) {
     NoSafepointScope no_safepoint;
     WriteObject(obj.raw());
   } else {
     ThrowException(exception_type(), exception_msg());
   }
 }
 
 
 }  // namespace dart