Added ScriptData::HasError.

src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index e4d7392a528b6877f7711fc8fc3dc59a84946b12..1c2818c972c7a223572616c39d7b4ab1eab70b4b 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -4711,6 +4711,11 @@ unsigned* ScriptDataImpl::Data() {
 }
 
 
+bool ScriptDataImpl::HasError() {
+  return has_error();
+}
+
+
 ScriptDataImpl* PreParse(Handle<String> source,
                          unibrow::CharacterStream* stream,
                          v8::Extension* extension) {