Fixed visibility attribute for GetPointerFromInternalField

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/11312099

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12868 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

include/v8.h

@@ -1613,7 +1613,7 @@ class Object : public Value {
    * otherwise use a combination of GetInternalField, External::Cast and
    * External::Value.
    */
-  V8_DEPRECATED(void* GetPointerFromInternalField(int index));
+  V8EXPORT V8_DEPRECATED(void* GetPointerFromInternalField(int index));
 
   /**
    * Sets a native pointer in an internal field. Deprecated. If the pointer is