Parser & preparser unification: make the ParseFunctionLiteral APIs the same.

src/preparser.h

Index: src/preparser.h
diff --git a/src/preparser.h b/src/preparser.h
index 6d89713c24ff91ba3ed8d962ee96aac207565503..8a5517e1984552719a790666e87f7c706e91e3c6 100644
--- a/src/preparser.h
+++ b/src/preparser.h
@@ -903,6 +903,8 @@ class PreParser : public ParserBase<PreParserTraits> {
       Scanner::Location function_name_location,
       bool name_is_strict_reserved,
       bool is_generator,
+      int function_token_pos,
+      FunctionLiteral::FunctionType function_type,
       bool* ok);
   void ParseLazyFunctionLiteralBody(bool* ok);