code: function parseSwitchTypeCase(lex) {
      var start = lex.assert('case');
      var type = parseType(lex);
      lex.assert('{');
  
      var body = parseStatements(lex, '}', false);
  
      var end = lex.assert('}');
      return new nodes.SwitchTypeCaseNode(type, body, start.start, end.end);
  }
docs: Parses a SwitchType's case statement
  @param  {Lexer}
  @return {SwitchTypeCase}