code: function parseConstLetDeclaration(kind) {
          var declarations;
  
          expectKeyword(kind);
  
          declarations = parseVariableDeclarationList(kind);
  
          consumeSemicolon();
  
          return {
              type: Syntax.VariableDeclaration,
              declarations: declarations,
              kind: kind
          };
      }
docs: kind may be `const` or `let` Both are experimental and not in the specification yet. see http://wiki.ecmascript.org/doku.php?id=harmony:const and http://wiki.ecmascript.org/doku.php?id=harmony:let