ES6: Add support for explicit octal and binary integer literals

src/scanner.h

 // Copyright 2011 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 390 matching lines @@
   }
   void SetHarmonyScoping(bool scoping) {
     harmony_scoping_ = scoping;
   }
   bool HarmonyModules() const {
     return harmony_modules_;
   }
   void SetHarmonyModules(bool modules) {
     harmony_modules_ = modules;
   }
-
+  bool HarmonyNumericLiterals() const {
+    return harmony_numeric_literals_;
+  }
+  void SetHarmonyNumericLiterals(bool numeric_literals) {
+    harmony_numeric_literals_ = numeric_literals;
+  }
 
   // Returns true if there was a line terminator before the peek'ed token,
   // possibly inside a multi-line comment.
   bool HasAnyLineTerminatorBeforeNext() const {
     return has_line_terminator_before_next_ ||
            has_multiline_comment_before_next_;
   }
 
   // Scans the input as a regular expression pattern, previous
   // character(s) must be /(=). Returns true if a pattern is scanned.
@@ skipping 128 matching lines @@
   // the current token, and  before the next. Does not count newlines
   // inside multiline comments.
   bool has_line_terminator_before_next_;
   // Whether there is a multi-line comment that contains a
   // line-terminator after the current token, and before the next.
   bool has_multiline_comment_before_next_;
   // Whether we scan 'let' as a keyword for harmony block-scoped let bindings.
   bool harmony_scoping_;
   // Whether we scan 'module', 'import', 'export' as keywords.
   bool harmony_modules_;
+  // Whether we scan 0o777 and 0b111 as numbers.
+  bool harmony_numeric_literals_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCANNER_H_