ES6: Add support for explicit octal and binary integer literals

src/preparser.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 123 matching lines @@
         parenthesized_function_(false) { }
 
   ~PreParser() {}
 
   bool allow_natives_syntax() const { return allow_natives_syntax_; }
   bool allow_lazy() const { return allow_lazy_; }
   bool allow_modules() const { return scanner_->HarmonyModules(); }
   bool allow_harmony_scoping() const { return scanner_->HarmonyScoping(); }
   bool allow_generators() const { return allow_generators_; }
   bool allow_for_of() const { return allow_for_of_; }
+  bool allow_harmony_numeric_literals() const {
+    return scanner_->HarmonyNumericLiterals();
+  }
 
   void set_allow_natives_syntax(bool allow) { allow_natives_syntax_ = allow; }
   void set_allow_lazy(bool allow) { allow_lazy_ = allow; }
   void set_allow_modules(bool allow) { scanner_->SetHarmonyModules(allow); }
   void set_allow_harmony_scoping(bool allow) {
     scanner_->SetHarmonyScoping(allow);
   }
   void set_allow_generators(bool allow) { allow_generators_ = allow; }
   void set_allow_for_of(bool allow) { allow_for_of_ = allow; }
+  void set_allow_harmony_numeric_literals(bool allow) {
+    scanner_->SetHarmonyNumericLiterals(allow);
+  }
 
   // Pre-parse the program from the character stream; returns true on
   // success (even if parsing failed, the pre-parse data successfully
   // captured the syntax error), and false if a stack-overflow happened
   // during parsing.
   PreParseResult PreParseProgram() {
     Scope top_scope(&scope_, kTopLevelScope);
     bool ok = true;
     int start_position = scanner_->peek_location().beg_pos;
     ParseSourceElements(i::Token::EOS, &ok);
@@ skipping 519 matching lines @@
   bool stack_overflow_;
   bool allow_lazy_;
   bool allow_natives_syntax_;
   bool allow_generators_;
   bool allow_for_of_;
   bool parenthesized_function_;
 };
 } }  // v8::preparser
 
 #endif  // V8_PREPARSER_H