Parse 'super' keyword.

src/scanner.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Features shared by parsing and pre-parsing scanners.
 
 #ifndef V8_SCANNER_H_
 #define V8_SCANNER_H_
 
 #include "src/allocation.h"
@@ skipping 420 matching lines @@
   }
   void SetHarmonyModules(bool modules) {
     harmony_modules_ = modules;
   }
   bool HarmonyNumericLiterals() const {
     return harmony_numeric_literals_;
   }
   void SetHarmonyNumericLiterals(bool numeric_literals) {
     harmony_numeric_literals_ = numeric_literals;
   }
+  bool HarmonyClasses() const {
+    return harmony_classes_;
+  }
+  void SetHarmonyClasses(bool classes) {
+    harmony_classes_ = classes;
+  }
 
   // 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 189 matching lines @@
   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_;
+  // Whether we scan 'super' as keyword.
+  bool harmony_classes_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCANNER_H_