Support Float64Arrays

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index dd606dcd0220f12bd69b958e08273979cab2dd03..a0ce6050e529b8d4005f2da6236ad83adc83b9b4 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -116,6 +116,9 @@ void HeapObject::HeapObjectVerify() {
     case EXTERNAL_FLOAT_ARRAY_TYPE:
       ExternalFloatArray::cast(this)->ExternalFloatArrayVerify();
       break;
+    case EXTERNAL_DOUBLE_ARRAY_TYPE:
+      ExternalDoubleArray::cast(this)->ExternalDoubleArrayVerify();
+      break;
     case CODE_TYPE:
       Code::cast(this)->CodeVerify();
       break;
@@ -232,6 +235,11 @@ void ExternalFloatArray::ExternalFloatArrayVerify() {
 }
 
 
+void ExternalDoubleArray::ExternalDoubleArrayVerify() {
+  ASSERT(IsExternalDoubleArray());
+}
+
+
 void JSObject::JSObjectVerify() {
   VerifyHeapPointer(properties());
   VerifyHeapPointer(elements());