JS errors thrown in private scripts should be reported to stderr in Debug builds

Source/bindings/templates/attributes.cpp

Index: Source/bindings/templates/attributes.cpp
diff --git a/Source/bindings/templates/attributes.cpp b/Source/bindings/templates/attributes.cpp
index 617fbb50a16c03819f9c48966762dfa275f261c9..dbb20c4f8e342fdbb4fe4faf80b6f8ddef256591 100644
--- a/Source/bindings/templates/attributes.cpp
+++ b/Source/bindings/templates/attributes.cpp
@@ -361,7 +361,7 @@ bool {{v8_class}}::PrivateScript::{{attribute.name}}AttributeGetter(LocalFrame*
     v8::TryCatch block;
     v8::Handle<v8::Value> v8Value = PrivateScriptRunner::runDOMAttributeGetter(scriptState, "{{cpp_class}}", "{{attribute.name}}", holder);
     if (block.HasCaught()) {
-        if (!PrivateScriptRunner::throwDOMExceptionInPrivateScriptIfNeeded(scriptState->isolate(), exceptionState, block.Exception())) {
+        if (!PrivateScriptRunner::rethrowExceptionInPrivateScript(scriptState->isolate(), exceptionState, block)) {
             // FIXME: We should support more exceptions.
             RELEASE_ASSERT_NOT_REACHED();
         }
@@ -397,7 +397,7 @@ bool {{v8_class}}::PrivateScript::{{attribute.name}}AttributeSetter(LocalFrame*
     v8::TryCatch block;
     PrivateScriptRunner::runDOMAttributeSetter(scriptState, "{{cpp_class}}", "{{attribute.name}}", holder, {{attribute.private_script_cpp_value_to_v8_value}});
     if (block.HasCaught()) {
-        if (!PrivateScriptRunner::throwDOMExceptionInPrivateScriptIfNeeded(scriptState->isolate(), exceptionState, block.Exception())) {
+        if (!PrivateScriptRunner::rethrowExceptionInPrivateScript(scriptState->isolate(), exceptionState, block)) {
             // FIXME: We should support more exceptions.
             RELEASE_ASSERT_NOT_REACHED();
         }